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.
drips dorps trips drops droops drapes tripos dropsy tripes drupes traipse hydrops hydropsy tarps traps turps trapes troops tropes troupes towropes trappose trappous
rips drips grips trips chirps tarps harps ripes cripes euripus larrups gorps burps preps sharps bewraps crops hydrops syrups craps traipse tripes reps urps wraps sirups perps props turps traps gripes raps drops rewraps fraps chirrups tripos warps dorps herpes corpus corpse corps carpus carps sherpas
drip drippy dorp drape drapey drop drupe trip tripe trippy