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.
footle foetal fettle futile fatal fatly fetal fitly featly fiddle fuddle vittle fatally fattily fauteuil
footle tootle rootle wattle motile pettle hotel kittle vittle butle bottle etoile boodle beetle battle botel retile nettle total shuttle cattle notal guttle pottle cuittle rotl citole sotol stele stole style dotal tattle tittle hotly mettle doolie kettle noodle rattle little poodle motel dole doolee futile mutule toile tile fettle tale tole cuttle tele tule rutile settle stale stile stoolie doodle dottle title outlie motley mottle utile whittle yodle
foot footie footy food foodie afoot