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.
cattaloes cattalos cataloes catalos cattails coattails cuttles catalase catalyze coatless cuittles kettles caudles guttles kittles cadelles gateless caudillos coddles cuddles gutless codeless keitloas
cataloes cattaloes tales catalos cattalos petalous stales
cattalo catalo cattail cattily cattle coattail