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.
blebby blabby bleb bilby blowby bellboy blab blob blub bulb bullyboy bilbo balboa bilboa
blebby lobby blabby flabby clubby globby slobby
bale bile blae blew blue bluey bole able