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