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.
belga beluga blog black bleak belike beylic beylik bowleg beelike belleek balk bilk bloc bulk
belga alga algae beluga nilgai nilgau telega
bel belay belie bell belle bellow belly below abele abelia obeli obelia