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.
gaur gar guru guar gurry kaury guiro kauri gor cur car curr gray gore cure carr grew gory goer care gree grey kuru grue grow karoo query queer quare curia curry curio curie carry quire