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.
granary grainer groaner coronary grainier greenery greener grinner greenier garner kroner kronor corner kronur cornier cornrow coroner crooner crowner
granary coronary ternary trinary urinary
grana gran grain grainy grannie granny groan