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.
miaows miaous mows maws meows mis mas mos mays mise moss moos masa miss maes moas mews mass miso mouse massy meous mossy masse mosso massa moose moues mosey missy mousy missay mousey mousse messiah mus
miaows bows bowwows vaws maws haws hawse vows sows taos dows tawse rows powwows waws paws chaos nows chows knows shaws miaous yaws mows bowse jows raws lows laws lowse cows caws gawsy saws dowse daws taws pows jaws tows owse wows naos chaws gnaws chowse meows shows hows yows