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.
gawkies gawks cakes kikes kakis gowks quakes guaiacs caiques cookies gags quickies cokes kicks gucks keeks kakas kecks gooks cukes guacos kaiaks quacks cookeys quaggas
gawkies hawkies wakes duckies skies rookies bikies bookies hackies hawkeys hickies hookies jackies cookies kikes quickies luckies nookies pokies sickies dickies tekkies chuckies kis