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.
flora florae fluor floor flour floury flir filaria filariae flier flare flair filer filar valor fleer fleury foliar flurry fowler fouler valour filler fuller feller feeler faller fueler velour failure filaree foolery fueller fullery velaria
flora flour tailor dolor pylori peloria glory galore colour clour calory jailor velour valour valor fluor florae lira floor bailor lour lory lore color couloir gloria pallor pillory sailor dolour cholera