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.
peek peck peke peak peaky pecky pekoe peg pec puke pock puck pika piki pick peag poke pike poky paik pack pawky picky pique pocky pokey pucka pukka
eek geek keek leek meek peek reek seek week cheek