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.
gabelles gables gabbles cables gobbles cowbells cabals cobles kibbles qabalas cabalas kabalas cobbles cabbalas kabbalas qabalahs quibbles cabbalahs kabbalahs
gabelles belles ballies belies bellies bells billies boulles bullies abeles cowbells libelees libellees rubellas sowbellies tubeless