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.
scale socle scall scaly suckle sickle cicale scull skoal scowl cecal cycle cicala sickly squall squeal zocalo cecally seagull squally sequelae squillae
locale scale cicale caecal fecal nuclei call keckle knuckle pickle mickle macle local clue eagle hackle regale huckle focal locule cecal caul gale galea faecal jackal muckle scaly socle zocalo deckle tackle tickle chuckle recall cockle cole calo tical suckle decal scall sickle jacal boucle coal nickle quale kale beagle laical mackle ducal macule rackle cycle buckle ruckle fickle recoal faucal vocal chicle pical heckle cicala clew goalie cackle shackle