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.
vomitus vomitous vomits vomitos fomites fumets
vomitus fomites summits smites remits omits mammatus mitis mitts ambits boehmites emits mites vomitous vomitos vomits commits gambits gummites limites limits mammitis reemits samites somites demits