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.
amasses amazes amuses amices ambsace amesace
amasses camasses masses biomasses mousses kumisses massas messes misses missies mosses musses embosses camases koumisses koumysses embassies zymases