WikiRhymer has about 6,000 rhyming words and phrases for "reducin'" starting with...

loosin'
    sluicin'
      sprucin'
        to sin
          inducin'
            producin'
              seducin'
                introducin'
                  reproducin'
                    overproducin'
                      reintroducin'
                        Poussin
                          Rusin
                            Pure Rhyme Set #1 of 1 (Add to/Edit Set Members)
                            Words that have a pure rhyme on their last syllable only.
                            ceasin'
                              greasin'
                                leasin'
                                  piecin'
                                    decreasin'
                                      increasin'
                                        policin'
                                          releasin'
                                            subleasin'
                                              unceasin'
                                                End Rhyme Set #1 of 677 (Add to/Edit Set Members)
                                                bleedin'
                                                  breedin'
                                                    cedin'
                                                      feedin'
                                                        heedin'
                                                          kneadin'
                                                            leadin'
                                                              needin'
                                                                pleadin'
                                                                  readin'
                                                                    seedin'
                                                                      speedin'
                                                                        weedin'
                                                                          accedin'
                                                                            concedin'
                                                                              exceedin'
                                                                                impedin'
                                                                                  inbreedin'
                                                                                    misleadin'
                                                                                      misreadin'
                                                                                        precedin'
                                                                                          preceedin'
                                                                                            proceedin'
                                                                                              recedin'
                                                                                                rereadin'
                                                                                                  secedin'
                                                                                                    stampedin'
                                                                                                      succeedin'
                                                                                                        intercedin'
                                                                                                          supersedin'
                                                                                                            Redin'
                                                                                                              End Rhyme Set #2 of 677 (Add to/Edit Set Members)
                                                                                                              continuin'
                                                                                                                discontinuin'
                                                                                                                  End Rhyme Set #3 of 677 (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)
                                                                                                                  broodin'
                                                                                                                    feudin'
                                                                                                                      alludin'
                                                                                                                        colludin'
                                                                                                                          concludin'
                                                                                                                            deludin'
                                                                                                                              denudin'
                                                                                                                                eludin'
                                                                                                                                  excludin'
                                                                                                                                    extrudin'
                                                                                                                                      includin'
                                                                                                                                        intrudin'
                                                                                                                                          precludin'
                                                                                                                                            protrudin'
                                                                                                                                              Boudin
                                                                                                                                                Rudin
                                                                                                                                                  Near Rhyme Set #1 of 18 (Add to/Edit Set Members)
                                                                                                                                                  gruelin'
                                                                                                                                                    Llewelyn
                                                                                                                                                      Near Rhyme Set #2 of 18 (Add to/Edit Set Members)
                                                                                                                                                      tubin'
                                                                                                                                                        Lubin
                                                                                                                                                          Rubin
                                                                                                                                                            Steuben
                                                                                                                                                              Near Rhyme Set #3 of 18 (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."
                                                                                                                                                              • be + to sin
                                                                                                                                                              • de + Poussin
                                                                                                                                                              • free + to sin
                                                                                                                                                              • me + to sin
                                                                                                                                                              • thee + to sin
                                                                                                                                                              • we do + in
                                                                                                                                                              • we do + sin
                                                                                                                                                              • we do + when
                                                                                                                                                              • we do + win
                                                                                                                                                              Mosaic Rhyme Set #1 of 1 (Add to/Edit Set Members)