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.
uteri utter udder
uteri setter gutter citer jittery ratter meatier neater battier fattier oater goiter teeter natter tattier nutter footer lotter knotter dotier tater watter rotter cuter pouter dieter powter coterie hatteria hotter rooter outer nitery niter matter satori vetter litter cattier mater hetero letter pitier baiter stria puttier meteor pettier ruttier beater cottier whitter cater dottier sootier patter toter wheatear coater whiter tottery hauteur titter chatter fetter tuatera pottery chattier steer chitter phatter sheeter batter shooter zootier tetter shutter daughter utter gaiter bootery nettier guttier buttery retear muter mitier rioter batterie bittier hooter quoter water jettier tear latria hater biter metier peter better loiter battery quieter noter eatery fatter doughtier nutria haughtier getter rootier pater nittier niterie mattery seater voter littery cotter cautery hitter liter potter terai suiter rater meter pewter writer tori couter matier doter nattier poutier guttery hysteria jotter rattier meeter netter trio feater otter goutier sitter tetri tauter nuttier footier lottery knottier dotter tatter wetter router cutter wittier putter cattery gater neuter kiter eater reutter mutter mooter ritter atria boater hootier butter later jitter knitter latter hatter bitter miter petter tier looter yttria quitter watery waiter pottier deter peatier totter whetter cooter whitier touter heater tooter chattery fitter souter gnattier cheater stere shatter vetoer shittier auteur shouter dater titer yatter