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.
steer stere seder setter stereo suiter souter sitter seeder seater sootier seedier stir star hysteria store story citer strew ceder stroy sitar stour stare satyr straw sutra stray stair stria strow stoure suture suitor strawy satori starry stoury satire sadder striae storey satara sautoir stourie zootier sautoire
steer feeder needer puttier kiter seeder cater rioter meter nettier bitter fitter dottier patter souter tooter titer outer vetoer matier nattier tater teeter whiter ceder guttery cutter couter bittier oater heder jettier ruttier peter nutter nittier meeter sitter hatter tattier looter coater hooter littery pouter battier daughter retear miter pottery seater gater mattery chattier wheatear powter dotier pettier uteri whitter cotter chatter waiter hetero touter weeder cheder stere watery shatter zootier shittier voter shooter beater shutter dieter totter footier later eatery biter goutier niter quitter fattier rooter knitter mutter rotter better buttery cattier hotter deer jittery knottier liter hauteur bootery mooter pitier boater lottery ratter rattier meatier mater tree otter heeder jitter writer petter nuttier noter meteor sootier cuter haughtier lotter cooter hootier loiter poutier tear deter reutter mitier pottier tauter guttier peatier citer netter rater quieter setter cattery ritter metier neuter auteur footer fetter doughtier letter toter titter pater vetter matter neater tatter tetter whitier seder gaiter goiter phatter fatter baiter gutter nitery quoter feater rootier knotter gnattier router latter batter cautery getter lieder jotter natter litter heater butter muter potter tier eater tottery wetter doter whetter putter dotter pewter utter wittier cottier chattery water hitter cheater tuatera chitter suiter watter sheeter dater shoetree hater shouter battery yatter
sate seed seedy site stew stewy stey secede