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.
badass bads bauds bawds beads baddies bawdies bids buds bats beds bods bodes boats bahts bates beats baits batts botas bidis betas bides beauts bettas biotas bedews bodies battues bawties beedies biddies boodies buddies beauties
badass dahs whydahs todays dadas redias odas nadas medias keddahs dais daws days diss doss tass tasse heydays houdahs howdahs ideas judas codas goddess maydays middays odahs paydays sodas dads whidahs chuddahs
bad baaed baddie baddy bade baud bawd bawdy bead beady