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.
smuts smites samites somites summits summates symbiots symbiotes
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