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.
braggy brag braky berg brig burg burka barca barky bourg brake break burqa berake bricky brogue burgoo barrack
raggy braggy craggy draggy ragg froggy groggy dreggy druggy
bra bora brae braw bray brugh bura burgh