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.
grinner grainer grainier garner greener groaner greenery greenier corner kroner cornier coroner crooner crowner granary careener kronor kronur cornrow
grinner brinier drainer mariner loriner grainier grainer furriner briner rainier brannier branner brainier runnier runner ruiner trainer
grin grain grainy grannie granny groin