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.
miaous miaows meous mousy moues mouse mis mousse mus mousey mas mos maws moss maes muss miss masa mass moas moos muse mise mows mays miso masse moose mosso mosey massy massa meows missy mossy mussy missay messiah
miaous gauss yous chiaus touse taos souse rouse pious nous mousy bouse bousy vaus house cause beaus louse pause chouse chaos taus douse sous roues naos louis mouse moues miaows meous luaus lousy youse