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.
collaret collared claret collard clarity cleared colored coloured glared cloured glaired goliard colorado galliard galleried gaillardia clerid
claret collaret cellaret blared flared floret collared glared pillared poularde cellared soleret solleret
collar collier colliery collyria