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.
god gowd goad good goody got goodie gad cod coda guid gaud gout code gadi coed gaed goat gude quod cooed coude gaddi gaudy gouty guide codeia cooeed goatee koodoo