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.
ericas ergs eurokies erugos aerugos eurokous
ericas myricas tricks torics darics orcas lyrics fracas maracas curacoas wricks arecas barcas bricks ricks curacaos hayricks heroics gearcase carcase carcass cariocas cricks verrucas pricks derricks triacs troikas