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.
garner greener grinner groaner grainer greenery greenier grainier careener corner kroner cornier coroner crooner crowner kronor kronur cornrow granary
burner earner darner turner garner churner yearner corner sorner mourner warner yarner learner warrener trainer vernier briner frowner ironer greener crowner brinier brainier drainer turnery rainier pruner ruiner barrener runner runnier droner grainer groaner greenier grinner cornier dernier coroner hornier branner ornery browner prawner fernery brannier pornier serener careener drowner brownier grainier furriner fernier greenery kroner loriner preener crooner brawnier barnier mariner
garni carn carney carnie carny garron gran grana grannie granny grin guarana guarani gurney karn