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.
chappie chippie cheapie chape chap chapeau cheap shape chuppa cheapo choppy chippy shoppe chuppah chip chop cheep
nappie chappie buppie hippie koppie nappe pappi rappee tawpie cheapie chippie yippie yuppie pie ape app