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.
tragus trugs drags trogs trigs turacous tracks trigos triacs troaks traiks trucks teargas turacos torques troikas drogues terraqueous touracos turquois dregs drugs torcs treks turks turquoise taroks tricks trocks drouks torics tarocs trokes trikes drakes tricksy turkeys turkois druggies
tragus choragus raggs piraguas morgues garigues crags viragos frags ragas brogues argus reargues rugous rogues rakus rags pirogues drags brags argues drogues choregus
drag draggy terga track traik triac trig trigo troak trog trug turaco turacou strake