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