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.
bads bauds bawds beads badass bids buds bats bods beds baddies bawdies bahts baits bidis bates beats boats bodes botas betas batts bides bettas biotas beauts bodies bedews battues boodies bawties beedies biddies buddies bits beauties bets bots buts beauteous beets bites bitsy bitts boots botts bouts butes butts bytes
ads lads chads wads tads deads roads rads naiads kneads meads mads loads leads quads bads goads gads cads heads fads beads pads reads dads duads toads woads shads