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.
bays bys bas beys boas buys bass baas base boys bias basso bassy byssi beaus bassi buoys bes bos bus bis boos boss busy bioassay bees bise bows buss bios bazoo boozy bossy bouse bousy bowse baiza baize
ays bays shays ways says rays pays nays mays lays quays kays gays cays jays hays fays days chays yays as