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.
pall pally pal paella pallia pial pawl peal pull poll pill pale pail paly palea paleae pulley pollee pillow pol pul ply pillowy plew pule plea pile peel pili pole plow pele pily play plie ploy polo pool pula poly puli pilau pilaw pilea pilei poilu polio
all ball fall hall call gall lall mall pall sall tall wall shall al