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.
chuppa chuppah choppy chippy chappie chippie chap chip chop chape cheap cheep cheapo shoppe chapeau cheapie
chuppa cuppa buppy huppah cuppy guppy kappa koppa nappa poppa pupa pupae puppy chuppah yuppy