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.
milord milliard mallard meliorate millerite
milord lord tailored poulard pollard paillard mallard kilorad colored collard holard foulard fluorid florid floored bollard lard dullard chlorid
mailer miler miliaria miliary miller milliare milliary millier moiler smiler