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.
flue flu flea file fuel flee floe fley flew value fille foley flooie flooey felloe faille fil fly flay fell feal fool fail fill feel fall flow fowl filo vale full foil foal vole fila foul vile flaw felly folia fella phyle filly fillo feyly flawy folly folio voile fully
blue flue value clue glue slue