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.
goliard galliard glared collard glaired collared gaillardia cleared colored gloried coloured collaret colorado galleried claret clerid clarity cloured kilorad
liard milliard goliard galliard billiard halliard lard holard cellared glared poulard collared pillared bollard lardy paillard flared collard blared foulard pollard laird poularde mallard dullard