Hiromasa rhymes with:
masa, alcasa, asa, basa, benincasa, bokassa, bourassa, cahasa, casa, casassa, dasa, diasa, enasa, kielbasa, kinshasa, kolasa, lanasa, lassa, lhasa, masa, matassa, mombasa, ossa, premadasa, rzasa, thalassa
Hiromasa sounds like:
haering, hairiness, harangue, harangues, haring, harm's, harmening, harmes, harming, harmon's, harmonic, harmonica, harmonics, harmonies, harmonious, harmonize, harmonizes, harms, harnack, harnage, harness, harnesses, harnisch, harnish, harnois, harring, harrowing, hearing, hearing's, hearings, hearns, heironimus, hering, herman's, hermance, hermanns, hermans, hermes, hermias, hermosa, herms, heroin's, heroines, heron's, herons, herring, herrings, herringshaw, herronimo's, heuring, hiring, hirings, hirons, hormones, hormuz, horn's, hornack, hornak, hornick, hornig, hornik, horning, horns, hornung, hornyak, hronek, hurrying