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.
terraqueous torques turquois turacous tragus turacos teargas touracos turquoise trogs trugs tarocs trucks trocks taroks traiks drouks tracks triacs trigos troaks drakes drogues troikas turkois derricks