WikiRhymer has about 1,000 rhyming words and phrases for "oats" starting with...

boat's
    boats
      coat's
        coats
          cotes
            floats
              gloats
                goat's
                  goats
                    moats
                      motes
                        note's
                          notes
                            quotes
                              throats
                                totes
                                  vote's
                                    votes
                                      connotes
                                        denotes
                                          devotes
                                            promotes
                                              Capote's
                                                Oates
                                                  • a rising tide lifts all boats
                                                  • burn one's boats
                                                  • separate the sheep from the goats
                                                  • compare notes
                                                  • at each other's throats
                                                  Pure Rhyme Set #1 of 1 (Add to/Edit Set Members)
                                                  Words that have a pure rhyme on their last syllable only.
                                                  redcoats
                                                    red coats
                                                      End Rhyme Set #1 of 3 (Add to/Edit Set Members)
                                                      raincoat's
                                                        raincoats
                                                          End Rhyme Set #2 of 3 (Add to/Edit Set Members)
                                                          coyotes
                                                            showboat's
                                                              salt oats
                                                                salt coats
                                                                  u boats
                                                                    footnotes
                                                                      scrap quotes
                                                                        love quotes
                                                                          bear quotes
                                                                            past notes
                                                                              banknotes
                                                                                tugboats
                                                                                  bum notes
                                                                                    gunboats
                                                                                      lifeboats
                                                                                        airboats
                                                                                          take notes
                                                                                            sailboats
                                                                                              scapegoats
                                                                                                speedboats
                                                                                                  steamboats
                                                                                                    c notes
                                                                                                      overcoats
                                                                                                        petticoats
                                                                                                          asymptotes
                                                                                                            asymptotes
                                                                                                              baseball quotes
                                                                                                                anecdotes
                                                                                                                  anecdotes
                                                                                                                    ferryboats
                                                                                                                      riverboats
                                                                                                                        End Rhyme Set #3 of 3 * (Add to/Edit Set Members)

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                                                                                                                        Words that "almost" rhyme on the vowel-based rhyme sound of the stressed syllable like: be/eat or maybe/shapely. (Click for more info)
                                                                                                                        growths
                                                                                                                          oaths
                                                                                                                            Near Rhyme Set #1 of 51 (Add to/Edit Set Members)
                                                                                                                            bolts
                                                                                                                              colt's
                                                                                                                                colts
                                                                                                                                  holts
                                                                                                                                    jolts
                                                                                                                                      volts
                                                                                                                                        revolts
                                                                                                                                          Goltz
                                                                                                                                            Holt's
                                                                                                                                              Holtz
                                                                                                                                                Voltz
                                                                                                                                                  • bucket of bolts
                                                                                                                                                  • nuts and bolts
                                                                                                                                                  Near Rhyme Set #2 of 51 (Add to/Edit Set Members)
                                                                                                                                                  boasts
                                                                                                                                                    bowse
                                                                                                                                                      close
                                                                                                                                                        coasts
                                                                                                                                                          dos
                                                                                                                                                            dose
                                                                                                                                                              ghosts
                                                                                                                                                                gros
                                                                                                                                                                  gross
                                                                                                                                                                    hosts
                                                                                                                                                                      los
                                                                                                                                                                        most
                                                                                                                                                                          posts
                                                                                                                                                                            toasts
                                                                                                                                                                              arkose
                                                                                                                                                                                engross
                                                                                                                                                                                  morose
                                                                                                                                                                                    diagnose
                                                                                                                                                                                      grandiose
                                                                                                                                                                                        Grosz
                                                                                                                                                                                          Lohse
                                                                                                                                                                                            • bring to a close
                                                                                                                                                                                            • draw to a close
                                                                                                                                                                                            • at the most
                                                                                                                                                                                            Near Rhyme Set #3 of 51 (Add to/Edit Set Members)

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                                                                                                                                                                                            Rhymes made up of more than one word. For instance, "jealous" and "tell us" or "shaky" and "make me."

                                                                                                                                                                                            No mosaic rhymes for one-syllable words.