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.
pawl pal pail pale pall paly peal pial pally palea pilaw pallia paella paleae pul ply pol pole puli plew pula plea pool play plie poly poll pili polo peel pile pele pily ploy plow pule pill pull pilau pilea pilei poilu polio
awl bawl pawl wawl shawl yawl al