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.
nisus niseis noises gneisses noses nazis gneissose gnosis nooses nesses gnoses nieces noesis nouses nauseas naysays newsies kneesies nauseous
nisus risus vises hoises issues casus guises liaises visas mises luscious sissy paisas peises vicious sises diecious disuse wises missus cissy poises passus suss sues sous lusus misos misuse bises noises pisos raises rises byssus reissues seises daises dioecious tissues chaises
nisei nisi noise noisy anis anise ensue