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.
fool foal foul foil fowl folia foley folio folly flooie follow foully flooey flu fil fly feel filo fuel fail flew feal fill flue flay fley fila flea file full flaw flow vole flee fall viol fell floe flawy voile fillo feyly fille fully filly viola ghoul fella felly voila
fool cool mool pool tool wool shool