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.
babe bawbee baubee baba babu baby baboo boobie bub bib bob bibb boob bubo bubu bobby booby bubba bubby
baba babe baboo babu baby ba ab