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.
nauseas nauseous nouses naysays noses gnoses nesses niseis noises nooses newsies gneisses kneesies nazis nisus gnosis noesis
nauseas uses seas houses fusses pauses pusses cusses gausses guises louses causeys chiauses casease reuses rousseaus souses disease touses bouses mouses wusses busies fuses muses tusses causes nouses buses misease mousses musses busses puses fusees reseaus rouses ruses susses douses wiseass chausses chouses