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.
drogues drouks druggies drugs trogs dreks dregs drags drakes drecks durocs tragus trokes darkies darkeys torques turacous trigs trugs treks dirks dorks darks trikes darics trigos taroks tarocs trucks troaks trocks terraqueous hydroxy teargas troikas turacos turkeys turkois
rogues brogues pirogues drogues roques argues baroques garigues morgues piroques reargues