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.
good goody god goodie gowd goad cooed cooeed koodoo got cod gad gude gout coot gaed gaud coed coda guid gadi code koto goat quod coude gaddi gaudy gouty guide kotow
food hood good mood pood rood wood od