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.
cadelle caudle caudally caudillo cattle caudal coddle cuddle coitally cuddly catalo cuttle cutely coital kettle cattail cattalo cattily cuittle gaudily
cadelle dele dell delly bedell patellae del