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.
coignes coigns cocaines cogons cockiness cocains cognise cognize cockneys cakiness coquinas cocainize kookiness cocoons kokanees gawkiness quakiness quickness
beignes coignes bigness guineas beguines bagginess agones koines jokiness kines ickiness bugginess gawkiness ligans leakiness mugginess pickiness pignus pugginess rockiness signs deigns tackiness wackiness cheekiness shakiness quakiness equines bogginess lagunes feigns fogginess hokiness geekiness cakiness cockiness eucaines bygones cocaines coigns kookiness legginess luckiness pawkiness pigginess pokiness reigns signees sogginess doggones tigons wigans shagginess yuckiness