WikiRhymer has about 2,000 rhyming words and phrases for "solo" starting with...

nolo
    polo
      low low
        so low
          spagnuolo
            Colo
              Rotolo
                Ruvolo
                  YOLO
                    Pure Rhyme Set #1 of 1 (Add to/Edit Set Members)
                    Words that have a pure rhyme on their last syllable only.
                    soldo
                      Leopoldo
                        End Rhyme Set #1 of 213 (Add to/Edit Set Members)
                        mo o
                          Joao
                            End Rhyme Set #2 of 213 (Add to/Edit Set Members)
                            mosso
                              so so
                                amoroso
                                  glorioso
                                    virtuoso
                                      Formoso
                                        Grosso
                                          End Rhyme Set #3 of 213 (Add to/Edit Set Members)

                                          Get Pro Features!

                                          To see all the end rhymes sets, you must "Go Pro." It's only $7.00 a year!

                                          I want to "Go Pro"

                                          Words that "almost" rhyme on the vowel-based rhyme sound of the stressed syllable like: be/eat or maybe/shapely. (Click for more info)
                                          soldo
                                            Leopoldo
                                              Near Rhyme Set #1 of 21 (Add to/Edit Set Members)
                                              mo o
                                                Joao
                                                  Near Rhyme Set #2 of 21 (Add to/Edit Set Members)
                                                  mosso
                                                    so so
                                                      amoroso
                                                        glorioso
                                                          virtuoso
                                                            Formoso
                                                              Grosso
                                                                Near Rhyme Set #3 of 21 (Add to/Edit Set Members)

                                                                Get Pro Features!

                                                                To see all the near rhymes sets, you must "Go Pro." It's only $7.00 a year!

                                                                I want to "Go Pro"

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

                                                                We have no mosaic rhymes for "solo".

                                                                Mosaic Rhyme Set #1 of 1 (Add to/Edit Set Members)