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.
decares dekares decrees decries daycares decrease decuries decors deckers degrees decorous degrease doggeries dikers daikers daggers dackers doggers dickers digress duckers diggers dockers duikers daiquiris toggeries takers tokers tackers taggers tickers tigress tuckers tuggers
cares daycares scares decares cars screws scores scars puggarees cores vicars scarce scries cures jaggaries cress picaras secures sowcars sucres carrs decries chickarees fiacres squares lucres nacres caress screes cries scaurs picaros vagaries crews pugarees eagres caries beggaries acres acarus quaeres soucars carse decrees dekares shikarees
decare decor decree decry decury dekare