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.
blowsy blows blowzy belows blousy bellows billows bowls bolos blaws blouse bylaws bluesy ballsy bilious bullous bowless bals bels balls balas boils bills bulls balsa boles bless blase bawls bliss bales biles buhls bolus bolas blahs bails blues bells bolls baals boules belays bialys boylas belies blueys belles bialis bailees baileys bailies ballies bellies bialies billies boulles bullies
blowsy belows jowls howls follows hallows lousy lows flossy allows lowse bellows sallows pillows tallows mellows willows glows yellows gallows lossy blousy bowls jealousy hollows flows fowls fellows fallows floosy blowzy blows billows plows owls slows mallows wallows glossy shallows cowls yowls
blowy blow below blaw blew blooey blooie bolo bowl lowball