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.
goddess gods goodies goods gudes goads codes gowds guides gaddis gaudies caddies kiddoes goatees cuddies kiddies codeias cods gads codas quods gouts gadis coeds gauds cotes guids gates cades goats caddis kiddos quotes caddice coatees cooties gateaus keddahs koodoos
goddess giddies widdies toddies dudes soddies noddies biddies buddies eddies eddoes fuddies baddies cuddies caddies kiddies kiddoes laddies middies muddies neddies paddies daddies teddies waddies shoddies