Fists rhymes with:
assists, consists, cysts, enlists, exists, insists, list's, lists, mists, persists, preexists, quist's, resists, schists, twists, wrists
Fists sounds like:
facades, facet's, facetious, facets, factitious, facts, fajitas, fascists, fastidious, fasts, faucets, faught's, faustus, feasts, fests, festus, fictitious, fight's, fights, fixates, fojtik, fosdick, fossett's, foxwoods, fujitsu, fujitsu's, fustok