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.
brownier browner brawnier barnier brinier brainier brannier briner burner branner barrener
brownier brawnier dernier pornier grainier crowner cornier hornier vernier frowner browner fernier brinier brannier brainier barnier runnier rainier greenier prawner drowner
brownie brown browny baron baronne barony boron brawn brawny briony