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.
corner cornier coroner cornrow crooner crowner careener coronary kroner garner greener grinner groaner grainer grainier greenery greenier 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
cornea corn cornu cornua corny crane acorn coreign crony carn carney crania corona carnie cranny crone coronae curn carny scorn