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