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.
gleeks cleeks kliks calks glugs caulks clacks kulaks clucks gulags colleagues clocks klicks cloaks clicks gloggs claques glucose cliques cloques calques galagos kylikes calicoes cowlicks gallicas glaucous killicks killocks
leeks belleeks cleeks gleeks sleeks leaks leks bleaks elks flecks whelks yelks