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.
metisses mitises meatuses mitoses mutases mediacies matsahs medusas mitosis matzas matzos
disses metisses poetises odysseys tassies daisies dassies dieses disuse dosses tasses daises iodises tissues tussehs tusses badasses betises vitesses caddises goddesses tosses cutises mitises poetesses radiuses
metis metisse meats meets metes mitis