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.
pock pocky pack poke puck peck pick poco poky pecky pucka picky pokey pic pac pec pike peak piki peke paca peek pika pica paik puke pawky peaky pekoe pukka
bock hock jock cock lock mock knock nock pock rock sock dock chock shock yock