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.
chica chic chick chico chickee check chock chuck chigoe chucky chukka chug shag
chica hic hick huic mica pica chic chick chico
chichi chi chai chia chiao hitch which