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.
carbon carabin carbine carabine corban corbina graben
bourbon carbon rabboni ribbon ribbony corban marrowbone rurban turban urban
carb carbo carboy carabao caribe caribou carob corbie corby crab crabby crib curb garb scarab scarabaei