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.
care car crew cure carr core quare curie carry cowrie corrie curiae quaere currie cry cor cur cru gar coir gore cory guar crow grey kore grew gree gaur grue craw curr kaury curia cowry kyrie curio kauri karoo curry coria cooer quire
are bare share chare ware tare dare rare pare mare quare care hare fare yare re ar