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