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.
widget wedged waged
budget gadget nidget widget midget fidget get wedged geta ridged fidgety noodged vegete hedged kedged judged fidged gadgety fudged lodged budged beget badged nudged cadged dodged fadged edged