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.
beat beaut bet bat beauty bait beet beta bate bead batt baht boat betta batty bawty battu beady bateau battue but bad bed bit bot batteau bitt bade bute bout bawd butt bedu bott bite bode bota byte baud boot bide booty butte bawdy boite bedew baaed baddy biota buteo beedi booed butty bitty
beat eat feat heat meat neat peat seat teat wheat cheat at et