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.
burgoo burg bourg brook brookie berg brag brig brock broke burka burke burqa braggy
burgoo forgo sorgo pargo largo grego crook cargo iroko virago forego rook farrago erugo ergo aerugo brook sargo trigo
burgh bur bourree brugh buhr bura bureau burr burro burrow burry bury