Here is a list http://www.foodnews.org/fulllist.php
I just buy organic whenever it's available. Sometimes it's just not available. I try to always get organic peaches, apples, celery, spinach and carrots. Those are usually the ones that are available and in the top 12.
Some things, like bananas, are further down on the list but organic bananas taste so much better than regular so I always buy them.
