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.
fley foley fly flooey flay floe file flew flue flee flea fille folly feyly felly flawy filly fully foully flooie volley faille felloe valley fil flu fail fill fall flaw fila vole feel vile fuel fell fowl foal filo foul vale fool foil feal full flow fillo folia folio phyle value vealy voile fella
ley holey doyley bailey fley foley valley volley alley gley galley gulley mooley muley mulley pulley riley shaley