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.
fila fil file flaw flea fail foil fill flay filo fille viola filly fella flawy fillo folia villa voila villae fellah faille fly flu feel floe fowl full fool veil flow viol vile flee flue fall feal fell foal vial flew fley foul fuel vail vela vill folly fully phial phyla felly feyly foley folio villi voile