Have you ever checked out the website of the Whole Grains Council? The "Whole Grains 101" section, and the "Identifying Whole Grain Products" section in particular, might really help you with this kind of research.
Specifically in regards to "White Whole Wheat" products, these ARE whole wheat products. Here's how it works.
Normal white bread is made from processed white flour. The end product is white because the colored parts of the grain are stripped when processing the flour. The parts they strip tend to be those parts which contain the most nutritional value, so white bread is a pretty empty food.
Regular whole wheat bread is made from red wheat, which has all of its components (hasn't been refined to remove the good stuff). This is what makes the bread dense and dark.
White whole wheat bread is made from a different variety of wheat...an albino wheat, to be specific, that is milder and sweeter than standard red wheat. It does go through some additional processing to make it smoother, but all of the components are there still. Here's an article from the Mayo Clinic on this: http://www.mayoclinic.com/health/who...-bread/AN01512
So white bread isn't ALWAYS white bread. Look for breads that meet the criteria defined on the Whole Grains Council page and you should be good!