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.
cozy cozey coz cosy coys cosey cozie cooeys cos cows cays coss coos goys cosie cusso gauzy goosy
boozy fozy cozy oozy doozy dozy woozy