Fixes rhymes with:
nixes, six's, sixes, wickes's, affixes, alex's, alexs, amax's, amex's, annexes, apex's, appendixes, avtex's, axes, banks's, boomboxes, brooks's, cevaxs, cineplex's, climaxes, coaxes, comex's, cox's, crucifixes, cyrix's, dax's, dynamics's, endotronics's, essex's, exes, faxes, felix's, flexes, gearboxes, genex's, hoaxes, imax's, index's, indexes, ionics's, isomedix's, jukeboxes, knox's, lynxes, mailboxes, marks's, matchboxes, matrix's, matrixes, max's, metroplexes, miramax's, nixes, nynex's, onex's, outfoxes, paradoxes, patlex's, perplexes, phoenix's, relaxes, royex's, sachs's, saks's, six's, sixes, skyboxes, sox's, speakes's, spinks's, surtaxes, syntex's, tax's, taxes', telex's, telmex's, vaxes, waxes, wickes's, x's, x.'s, x.s, xerox's, xeroxes
Fixes sounds like:
f's, f.'s, faas, fac, face, faces, facey, facie, fag, fagg, fags, fahs, fake, fakes, fasick, fasig, faso, faso's, fass, faubus, faucheux, fauci, faus, fausey, fauss, faux, favazza, fawbush, fawkes, fax, faxes, fay's, faye's, fayez, faz, faze, fazekas, fazio, fazzio, fe's, feces, feck, feeback, feebis, fees, feese, feick, feig, feige, feis, fejes, fescue, fess, fez, fiacco, fiasco, fiascos, fica, ficco, ficek, fichus, fick, ficke, fickes, fico, fiebig, fiefs, fig, figg, figge, figgie, figgie's, figgs, figs, fiji, fiji's, fike, fikes, fipps, fis, fisc, fisch, fiscus, fish, fish's, fishes, fishy, fisk, fisk's, fiske, fiske's, fiss, five's, fiveash, fives, fix, fizz, fobbs, fobes, focaccia, focus, focuses, foes, fog, fogg, fogg's, foggy, fogs, fogy, foisy, fooks, foos, foose, fooshee, fosco, foshee, fosia, foskey, foss, fosse, fossey, fossey's, fouch, fouche, fouse, fousek, foushee, fowkes, fox, fox's, foxes, foxx, foxy, fs, fsi, fucci, fuchs, fuchsias, fuck, fucks, fugazy, fuge, fugue, fugues, fuhs, fuji, fuji's, fujii, fujikawa, fujio, fujioka, fujis, fujisawa, fujiya, fuke, fukowoka, fukui, fukuoka, fuoco, fuoss, fuqua, fuquay, fusco, fuse, fuses, fuss, fusses, fussy, fuzes, fuzz, fuzzy, fyffes, fyke, fyock