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.
body boody bod bode booed biddy buddy beady baddy bawdy booty bot bed bid bad bud boughed bota bide bout baud bade boat bott boot bead byte bidi bawd bedu baaed batty bedew beedi biota bitty boite buteo butty bawty
body boody hoody goody moody doody tody woody od