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.
quarrels carrels carrells cureless careless curls carls querulous carrioles garrulous gruels creels carols carles guerrillas corrals carless curlews carolus creoles coreless creolise carioles crewless grails kraals craals grills gorals growls crawls grilse krills graals corals
barrels ferrels carrels sorrels quarrels parrels reals sorels gruels cereals ariels jurels parrals carrells laurels riels reels oriels creels pyrrols corrals saurels morels
quarrel aquarelle aquarial squarely