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.
poetic pudic pataca paddock piddock
luetic etic noetic poetic tic medic chaotic maieutic stoic phatic lotic vatic miotic tick meiotic viatic attic viatica otic lytic stick photic detick biotic shtick
poet pot pet pooed spot pouty pout potty potto pieta piety petty petto petti peaty peat spotty