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.
carless careless carles carls carioles cureless coreless crewless carols carrioles carrels carolus creoles curlews carrells curls craals creels corals crawls corrals grilles criollos quarrels creolize creolise garrulous grails graals gruels grills gorals growls grilse krills kraals goorals
barless fearless cheerless warless earless oarless peerless tearless airless furless carless heirless gearless doorless hairless rayless arrowless browless burleys crewless birles hourlies hurleys weariless hurlies curlews riles ferules ireless pyrroles arles carles whirlies ferlies rules girlies shoreless orles rales proles wireless parles cureless morales berryless fireless braless farles roles charleys trailless ferrules careless coreless paroles tireless treeless juryless barleys charlies parleys chorales merles yearlies
carle carl carol caroli carrel carrell curlew