Fillion rhymes with:
filion, billion, brazilian, castrillon, civilian, crocodilian, dillion, filion, hillian, jillion, killian, killion, mcmillian, mcmillion, million, multibillion, multimillion, octillion, papillion, pavilion, pavillion, pillion, quillian, reptilian, stillion, trillion, vaudevillian, vermilion, vermillion, zillion
Fillion sounds like:
fahlman, falani, falin, fallen, fallin, fallon, falynn, feelin', fehlman, felan, felim, feline, fellin, fellini, fellman, felman, felon, felony, filene, filion, fillman, film, filma, filomena, flaim, flam, flame, flaminian, flamm, flammia, flan, flann, flanna, flaum, flawn, fleeman, flewellen, flim, flinn, flom, flown, flume, flynn, folan, folino, follin, follman, fulani, fullam, fullen, fullman