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.
policy police polys polis polios polies plaice poleis pols pulis polls ploys palsy pilis plies place poles polos plays pools palace palais plisse poilus palazzi pelisse pollees pulleys
policy lacy lice fallacy malice police cilice slice sluicy chalice
polio pol pili plie poilu pole poll pollee polo poly pool puli apollo spoil