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.
peal pal pial peel pele pawl pail paly pall plea pale palea pally pilea paella paleae pallia pul pol ply puli plie pily pool polo pole pile play pule pili pula pill ploy poll poly plow plew pull pilau pilaw pilei poilu polio
feal veal wheal weal teal deal zoeal zeal seal real peal meal leal heal sheal al el