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.
carioles carrioles carles carols creoles carolus carless carls criollos careless curlews grilles carrels corollas creolize crewless coreless creolise carrells cureless curls crawls creels corals growls grilse grills grails craals krills corrals quarrels gorillas garrulous guerillas guerrillas gorals graals gruels kraals
varioles carrioles orioles carioles darioles birles triols creoles zorilles girolles proles variolas parolees brailles riles rouilles grilles orles aureoles paroles areoles pyrroles rilles roles weariless
cariole carol caroli carriole criollo scarily