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.
cowlick colicky click colic coeliac cluck klick clock clack calico kolacky killick klik calk cloak caulk cleek colog colloquia cliquy colugo gallic clique cloaca cliquey cloacae gallica killock
cowlick lick bowlike flick jawlike click colicky killick klick lawlike rollick rollicky rowlock sawlike slick