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.
betise bets beets betas beats beauties bettas beauts bawties butties booties beedies buts beds bids bits bots bats batts botts botas bitsy boats butts beads baits boots bites bates butes bidis bodes bytes bides bahts bitts bouts beauteous boites bedews buttes buteos biotas bodies baddies battues bawdies biddies boodies bootees buddies
poetise betise tis moieties metisse kitties cutis lattice notice bawties tuis ties catties butties gaieties cooties beauties fatties pieties potsie putties retuse cities setose zitis dawties ditties tatties tits tootsie tuttis chitties patois etuis cuties cutties tutties duties titis dauties deities satis sties reties rotis poetize potties ketose footsie titties hotties whities iodise jetties jutties coatis footies laities booties metis mitis mutase outsee patties pities yetis