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.
cookey cooky cookie coke coky cook cakey kooky cocky gooky kookie cock cake caky cuke gook coco kook cocoa kicky coocoo cuckoo quacky quickie cog keg
hookey chokey cookey hokey jokey pokey oke key dykey toke coke oaky gooky cooky cookie gooey rickey tokay cakey dickey hickey cooey skiey kooky jockey poky hockey rookie mickey choky choke dikey pocky fakey bookie hoke okay hawkey cocky moke nookie rocky soke tackey hooky coky poke kookie nooky lackey rekey joky rooky okeh woke joke yoke
cook cookie cookey cooky coo cooee cooey gook hooky kook coco kooky rooky rook hookah nooky rookie sook choke choky coke coky hooka cocky book hook bookie look cocoa kookie nook nookie coocoo hookey cock gooky bookoo took chokey chook