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.
galoots galloots galiots galliots gaults glouts cloots gloats gallets glottis galettes gallates gluts galateas calottes clots galletas gleets guilts clouts glutes callets gullets gluteus culottes cults colts golds qualities glitz clods gleds kilts glads kelts cultus clouds guilds gledes glitzy caulds culets glades glides cleats gleeds quilts colitis collets cullets keloids kilties
cloots loots galoots galloots lots lotus galiots louts maillots floods gloats clots pelotas helots lotos flouts ballots lotas slots zlotys fallouts pilots floats blots bloats clouts galliots bailouts allots bloods glouts rollouts pullouts flotas plots reallots sellouts zealots shallots