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.
faucal faecal fecal focal fugal facula fugally focally faculae vagal vocal fugle feckly fickle fickly fuggily vacuole vagally vaguely vocally
faucal ducal calo cecal recoal pical coequal jugal local call caul coal quail quale zocalo squall boucle equal cicale jackal cicala laical scall jacal rugal recall locale caecal faecal decal vocal scale fugal focal fecal squeal scaly tical