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.
mammitis mammets mammatus maumets
mitis mammitis demits somites samites reemits emits midis mites mitts ambits amities boehmites metis gomutis fomites vomits vomitus comities commits gambits gummites limits vomitos limites omits remits smites summits dimities
mammate mammati mammet mummied