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.
argues argus arcus arecas argosy arcs arks araks arkose arracks
argues morgues reargues rogues garigues brogues drogues pirogues raggies torques forgoes foregoes marques perukes reggaes argus druggies cargoes choragus farragoes tragus marquees roques rugous marquess periques barques cirques piraguas piroques baroques viragoes raggees choregus