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.
keitloas ketols kettles kittles cutlas catalos cutlass catalase cataloes cattalos cuittles cattaloes caudillos
keitloas talas telos tolas atlas catalos cattalos cutlas cutlass outlaws outlays citolas whitlows