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.
quick quickie quack quacky kick guck quaky kicky quake quokka cuckoo guaiac cuke cook coky kike cock caky quag keck cake coke
quick ick kick kicky quack lick luck mick guck mucky puck pick wrick sicko sucky dicky ducky tuck chick chucky yuck rick huic icky picky hoick hick fuck bucko buck lucky huck muck nick pucka ruck sick suck dick duck tick wick chuck shuck yucky
quick quickie quai huic quack quacky