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