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.
coaly coal coly cooly colly coala coyly col coolly cowl calo clay caul cloy cool call goal cole coil cola gally cully golly gayly calla koala gaily coolie collie cullay coulee callee goalie callow galley gal clew kola koel clue gale gall kohl gley gaol gala cull kail kale claw kolo
coaly shoaly noily doily oily koala lolly goal rally paly really coyly gally colly daily sally holy coal knolly dooly jowly dually coala wally jolly wholly hooly wooly joual shaley mealy shoal moly coolly mooley dolly pally leally lowly golly rawly poly roily gaily gayly coly dally cooly zoeal bialy bally doyly foal tally holly waly folly woolly vealy chally foley shaly molly holey ally