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.
poll pol pollee pill poly pull pole pall polo pool pally poilu polio pillow pulley paella pallia ply pul pal pillowy pili pile pule ploy peal pale peel pail play pele pial pily pawl plea plie plow paly puli plew pula palea pilau pilaw pilea pilei
boll quoll loll moll knoll poll roll doll toll