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.
ruffled riffled raffled rifled refiled refilled refueled refelled refuelled reflet refold rivulet rivaled raveled reflate reflood reviled reveled ravelled revalued revealed revelled rivalled reavailed refelt refloat
baffled riffled raffled souffled waffled coffled whiffled piffled muffled ruffled shuffled fled filed flied flued refiled rifled souffleed defiled
ruffle ruffly raffle riffle gruffily gruffly truffle