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.
doss dos dows diss toss does duos dose dowse douse doughs dassie dis tows dies deys tass dais dahs dews dozy daws doze dues taos dees toes days toys daisy diazo disci doozy douce tasse toeas touse
boss foss joss coss koss loss moss doss toss os