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.
beluga belga blog black bleak belike beylic beylik bowleg beelike belleek
beluga lug alga algae belga colugo glug nilgai nilgau plug slug taluka telega
bel belay belie bell belle bellow belly below blue bluey abele abelia obeli obelia