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.
rimes rims rimose rimous romeos rhymes ramies ramees rummies rams roms rems roomies rums ramus reams roams rooms ramose ramous remise remiss rumbas
limes dimes times rimes chimes mimes semes maes mesa limos jambes games mameys tames roomies momes bombes mess hemes coombes pomes femes commies ramees limeys mews nomes bimas comes dims lambies ramies smews siamese shims shammies shames homes simas whims wames cymes tommies hames demes zymes biomes mimeos chammies gimmes mammies domes rims jammies cammies rhymes limas jemmies limbs names emeus dummies homies nims kames pommies cameos rummies jimmies neumes homeys emes heaumes gimmies aims combes cames mamies lames pimas gnomes mems zombies fames romeos maims mammees mammeys femmes immies fumes vims hims amies dames mummies sims mommies memes gambes demies tammies tomes tummies whammies whimsy chimbs chymes shammes shimmies shmoes yummies
rime rim ramee rimy romeo brim crime grim grime grimy prim prima prime primi primo trim