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.
concede coincide conceit coenocyte conicity gonocyte
concede lanced winced fancied fenced jaunced jounced coincide bounced minced menaced nuanced ponced pounced synced zinced danced chanced
cones coneys conies coyness icones sconce scones