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.
barbel barbell barbal barbule barrable bearable bearably burble burbly brabble
corbel barbel doorbell rebel rubel barbal barbell burble burbly harebell verbal herbal gerbil corbeil garble marble marbly warble
barb barbe barbie bribe bribee burb