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.
drooly drool drolly drily droll dryly direly trolly dearly drawly dourly dariole trolley dirl drail drawl drill dural triol troll truly derail tearily trawley hydrilla
drooly roily brolly growly narrowly poorly drolly drool trolly
door duro rooter rootier rotor