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.
beglad begalled beguiled bugled becloud boggled backload buckled bakelite
beglad glad glady glade colead clade clad higgled juggled jiggled goggled niggled reclad scalade daggled waggled gled yclad gold backload boggled bugled eagled fugled haggled giggled joggled gaggled guggled ogled wriggled scalado toggled wiggled
beagle begall beguile bigly bogle bugle