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.
flee floe flew file fley flue feel flea foley fille flooey flooie felloe faille fly fil flu full flow fool fuel fall foil fill flay fila feal flaw vale fowl fail filo vole foul vile foal fell fully voile felly fella feyly folly filly folio flawy folia phyle fillo value
lee alee allee bailee flee gelee callee coulee glee mallee melee pollee doolee