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.
growls carols grills graals grilse grails gorals gruels crawls goorals grilles creoles carolus corollas creolise criollos gorillas carioles crewless curls carls garrulous carrioles guerillas kraals creels carles corals krills craals guerrillas carless corrals carrels curlews careless carrells coreless creolize cureless quarrels
growls prowls areolas rolls roles carrioles creoles nerolis areoles orioles aureolas proles payrolls pyrolas pyrrols ceorls drawls drools triols whorls parols paroles roils crawls brawls broils variolas varioles carioles carols barlows carolus aureoles nerols reoils pyrroles rerolls darioles drolls trawls trolls shorls