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.
kvells kevels gavels kevils cavallas cavallies cavils coevals gavials coaevals
fells kvells fellas feels falls veils vills befalls filles biofuels favellas cavallas gavels fillos levels nouvelles novels refalls refels refuels reveilles defuels dewfalls uphills kevels fills hovels bevels folles fuels fulls ghylls phallus phyllos follis veals villas villus favelas failles navels novellas ravels refeels refills reveals revels devels duffels shovels