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.
catcall catclaw cuticle
catcall outcall stoically poetically viatical nutgall nautically nautical metical meiotically medically lytically ducally vatical photically phatically biotical tical teocalli poetical radically chaotically