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.
boucle buckle bogle bugle boggle beguile bacula beagle
boucle buckle fickle ekuele bugle faculae macule nickle muckle pickle locule macle ligule ruckle cycle keckle sickle cackle suckle vacuole ducal heckle tickle feculae chuckle faucal beguile clew cicale cole fugle guile quale coulee mickle nuclei knuckle rackle mackle maculae aculei locale scale ligulae socle cockle deckle hackle tackle huckle chicle clue shackle