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.
beaut beauty beat bat bet but bateau butt boat bait baud bout batt beet bedu batteau bute beta bead baht betta bawty butty butte beady battu batty buteo bought bud bot bad bed bit bott boot bate bitt bide bite bode bawd bade bota byte
beaut eat chateau teat daut saute peaty neat meat auto bateau batteau beat beauty feat haut ghaut haute heat coteau couteau gateau maut meaty peat reata seat taut wheat cheat