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.
maws mas miaows mays mews mows masa moas mass maes massy masse massa meows miaous mus mos mis mazy miso maze muss mise muse moos mesa moss miss mace mess mousy mosso mosey maize missy mossy mouse moues moose messy meous mussy
vaws saws shaws chaws waws taws daws raws haws paws gnaws maws laws caws jaws yaws as