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.
blousy bluesy blowsy blouse bullous bilious bolus blues bolos blows blueys boules belows blowzy ballsy boulles billows bellows bals bels bless blase bolas bliss bales bolls bulls blahs bawls baals bails bells blaws boils boles balls bowls balsa balas buhls biles bills boughless bialys boylas belays belies bialis belles bylaws baileys bailies ballies bellies bialies billies bowless bailees bullies
blousy jealousy lousy tolus zealous solus pileous gallous bolus jealous ghouls fouls folious flossy floosy bluesy bullous louis lossy callous villous glossy blowsy pilous blouse souls bilious delouse louse chylous
below blooey blooie blow blowy blue bluey bolo boule boulle aboulia lobule