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.
cooeys cooees coos coys cosey cozey goosey cos goys goos cues cays cosy cows goes cozy coss keys cosie cozie goose goosy queys causey coz gos kos
hooeys joeys cooeys looeys oes hosey leys cosey boys mosey buoys moues nosey cooees cozey voes noes foes roes soys deys does toes wheys choosey sooey zooey joys foys goes goys queys loess joes beys hoys keys coys hoes goosey looies poesy roues zoeas dioecy toeas toys woes shoes
cooee cooey coo gooey coco cocoa coke coocoo cook cookey cookie cooky chook