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.
bedsit bedside beadiest bodysuit baddest battiest bawdiest badassed bittiest
bedsit haddest deadest sadist rudest outsit oddest modest maddest nudest loudest lewdest catsuit hideosity headset whatsit wadset hadst feudist nudist wetsuit didst sawdust saddest reddest odist nodosity dost midst dust adust baddest bodysuit faddist widest
beds bads beads bedews beedies bets bids bods buds