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.
bistro bister bistre bestrow bistoury baster bestir buster bestrew boaster booster bustier besetter
bistro maestro luster coaster strow keester pastry stir astir caster nester star baster quaestor piaster ester aster ouster stroy keyster poster hoister coster jouster questor rester destroy shyster wester roaster waster toaster lustre taster diester rostra zoster vestry meister sister xyster feaster royster paster rooster bestir moister leister buster castor jester boaster laster raster costar bister oyster easter booster piastre foster faster juster nestor maestri bistre gaster pester bestrow kiester keister heister quester fester ristra lister muster master roster pastor wrester lustra zester sistra mister daystar diaster rouster duster tester vaster waister wastry roister chaster yester
bast baste best bestow biased biassed bust busty