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.
cosie cozie cosey cos cosy coys coss coos case cows goose cause cozey gawsie cassia cuisse goosey cooees causey cooeys gussie kos gos coz caws cays kois goes goys cues cozy goas goos casa koas cuss koss
cosie ose voice fosse bowse looies lose lowse hoise mosey newsie noose nosey nose hose pose poussie rose sice souse doozie douse tassie whose choose chose chowse owse noise hosey poise house cozie gawsie goose goosey gussie cosey lassie loose louse moose bouse mouse posse roose rouse size dassie dose dowse touse choice choosey chouse youse