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.
styrene strewn stearine sauterne stern sterna strain strown citrine stearin seatrain citrin citron cittern sadiron
styrene terrene triene gadarene
satyr stare stere stereo store storey strew