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.
vale value valley veal vole vial vile vail voile vealy volley faille villae veil floe vill viol file foal flew flue vela fall fail flea fley flee feal fille foley phial phyle villa villi viola voila
ale rale whale wale tale dale sale pale bale male quale kale gale hale vale shale al