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.
fly fley flay foley feyly fully flawy felly folly filly flu foully fil flooey fila filo fuel feel flew fool fell flee fall floe fill file foal fowl flea foil full feal flow fail flue foul flaw folio vealy fillo fella folia fille faille fallow fellah felloe fellow flooie follow valley volley