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.
gawking caking gagging quaking quacking coking cocking cogging cooking kecking keeking kegging kicking cuckooing
howking hawking gawking king skiing hiking wricking cocking ryking recking poking hocking fucking cooking mocking coking seeking nocking quaking racking joking ricking lekking looking jacking eking peaking faking juking peeking kicking liking kecking diking yucking yocking decking yakking shucking taking shaking chucking ducking chocking checking waking socking whacking viking toking piking dyking rooking necking making laking wreaking deking knacking packing hoicking hacking kiang picking nuking paiking nicking miking locking hooking pocking backing rucking wrecking sacking sicking biking baking caking booking licking keeking raking lacking reeking leaking puking jouking pecking jauking quacking soaking mucking dekeing wracking becking lucking knocking rocking duking hoking ticking bucking wauking tucking gecking wicking cheeking docking choking shacking tacking shocking yacking sucking yeuking yoking dicking yukking