I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
gamuts gambits gomutis gametes gumboots gummites gambados commutes gambades gambadoes gummatous comets comtes comates combats commits comatose comities
muts gamuts smuts mots dimouts muds summits omits mutes remits ramets maumets limits mats comtes mauts mutts mammets emeutes reemits emits fumets vomits gemots comets commits commutes gomutis emmets demits timeouts
gamut gambade gambado gambit gamed gamete gammadia gammed gaumed gomuti agamete agamid