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.
stray strawy stria sutra story stroy straw starry storey satara stoury striae stir star hysteria steer satyr stair store stare strow strew stour sitar stere satire stoure stereo setter sitter seater souter satori suiter sudary suitor suture sautoir sootier stourie sudaria sautoire
betray tray stray try straw story strawy cautery tory tora yttria jittery deray dray latria lottery nutria pottery stria sutra datura tetra tuatara watery nitery rotary trey eatery battery guttery bootery littery buttery mattery votary poetry atria satara notary retry cattery troy stroy datary dietary tottery tuatera chattery
satay seta setae staw stay stoa stoae stoai