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.
smews semes sums sims soms seams sumos cymes seems semis simas smaze somas zymes sambas sambos samosa summas simious
mews smews pommies homies homes mamies roomies lames mammeys limeys heaumes jambes meows mesa games maws mimeos rimes memes cameos maes cymes gimmes momes mows ramies tommies siamese shimmies hames shammes chymes mess chammies wames dames times names mummies domes tames nomes demies coombes bombes comes cammies amies immies femmes romeos homeys pomes commies mimes haymows combes mammees mems rhymes jemmies gnomes jimmies emes gimmies mammies limes cames kames biomes mameys neumes fames jammies rummies semes gambes emeus zymes ramees dimes fumes tammies dummies hemes tomes tummies demes whammies chimes mommies shames shammies femes shmoes yummies