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.
rids raids rides rods rads reds rudds redes rotis redds roods writs reads redos rites reeds rodes riots roads radios riatas writes redias radius readds rodeos reties raitas redoes readies riotous roadeos rowdies roadies rats ruts ritz rots rets rates ratos ritzy roots rotas rotes rotos routs
aids gids hyoids teiids sayyids rids mids fids vids voids ids geoids bids guids caids kids qaids quids lids loids maids raids saids zooids whids yids