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.
callosity gulosity calloused closet calcite callused closeout coaliest clast glost closed coolest calceate gallused coalesced
villosity callosity gulosity pilosity falsity velocity lost
callose calls calos callas callous callus scalls