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.
stoma stemma stem stum satem sodom steam stime stimy stymy sodium sodomy steamy stemmy stymie zootomy
stoma tom douma tomb tome toom atma atom atomy bottom etyma zootomy diatom