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.
flouter fluter flutter flutier floater fluttery floatier falter filter flitter fleeter flytier flooder flatter faultier flattery folder fielder philter vaulter fellator filature vaultier violater philtra philtre vulture
flouter clouter slotter poulter plotter molter coulter clutter looter lotter louder allotter balloter bloater loiter bolter floater fluter flutier flutter vaulter jolter blotter colter gloater moulter polluter saluter diluter
flout flauta float floaty flota flute flutey fluty fluyt