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.
purring pouring parring pureeing paring poring pairing peering preeing prang prink prong parang puranic prank
barring churring shirring charring warring birring whirring tarring erring curring purring yirring chirring gnarring marring jarring furring herring garring earring parring burring ring cering lairing soring deairing gringa gyring heiring siring during poring caring pouring truing quiring gearing seringa ruing wairing pairing rearing bring showring sering fairing shearing tearing choiring cheering charing wiring paring earing queering louring hearing peering baring oaring haring wring airing veering nearing tiering syringa curing souring muring soaring choring jeering sheering waring fearing luring raring taring miring faring mooring hiring iring gringo leering goring touring firing tiring bearing boring daring eringo roaring tyring wearing whoring chairing zeroing searing sharing shoring coring