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.
legist ledgiest logiest
agist legist gist ledgiest dodgiest cagiest sedgiest jujuist sagest hugest pudgiest hedgiest logiest edgiest egest ageist joist hygieist hygeist gest podgiest ridgiest sagiest digest wedgiest
ledges leges lieges elegies elegise elegize