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.
peel pele peal pollee paleae paella pal pul ply pol pool plie plea plow puli pula polo pall pale pole poll plew pial pule pawl pili pill paly poly pily pile ploy play pail pull pilea pilei poilu polio palea pally pilau pilaw
eel feel heel keel kneel peel reel seel teel weel wheel el