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.
coulee cole callee col coolie collie clue caul coil clew coal coly cool cull glee cowl cola quale cully coyly colly cooly coaly coala guile coolly cullay galeae goalie gulley quelea gul
coulee lee tulle doolee pule paleae mule mallee alee allee bailee boule boulle flee ghoulie gelee joule callee galeae glee guile quale melee muley pollee rule tule yule