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.
league lag leg leak leek leke leku leaky leggy laogai lac lek log lug
ague vague league fugue vogue gigue kagu maguey rogue segue togue
lea flea ilea leal leally olea plea