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.
chapt chapati chapatti chappati chapped shaped cheeped chipped chopped
chapt apt boughpot caput coapt kaput leapt rapt wrapt teapot whipt
chap chape chapeau chappie cheap cheapie cheapo chip chippie chippy chop choppy chuppa chuppah shape schappe