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.
cadet caddied caudate coded godet catted caudad coated codded coedit gadded goaded quadded
cadet headed woaded stade loaded leaded laded godet goaded jaded haded deet faded bidet beaded adit duet diet kneaded waded shaded
cade cad caddie caddy cadi caid cate code codeia caked scad