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.
birrettas birettas berrettas berettas barrettes barrets burettes britts berets breads burets barytas birdies burritos birds brads brats brits borts bruts bourrides brides bredes bardes broads brutes boarts breeds bruits brights burdies berates borides barites borates barytes byroads brattice bards bortz burds
berettas berrettas birettas birrettas reatas ariettas barrettes burettes curettes syrettes rets
birretta barret barrette berretta biretta birred