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.
brannier branner brainier brawnier barnier brinier brownier briner burner browner barrener
brannier runnier pornier greenier grainier cornier hornier vernier fernier brownier brinier brawnier branner brainier barnier runner rainier grinner dernier
branny bran borane brain brainy brawn brawny buran