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.
comedy comedo combed comet comte coembody comity comate comade commode commute cameoed gamed committee combat commit gammed gaumed gummed commata quomodo
remedy comedy med maimed bammed beamed comedo teemed combed limbed bombed domed jammed lambed reamed meed bummed hummed lamedh gemmed tamed demoed jimmied tombed shimmed shammed named chummed chammied rimmed whammed mummed dammed summed rhymed numbed dumbed roomed aimed seemed loamed gaumed gamed foamed boomed rimed jemmied timed zoomed hammed shamed deemed mead dummied doomed hemmed fumed someday dimmed lammed gummed limed wombed seamed jambed rammed nimmed mummied mimed loomed roamed famed shammied lamed gammed imbed homed embed teamed tommed chimed shimmied
come came cameo coma comae comb combe combo comma commie commy coomb coombe acme