Talk to the staff at Double A, they likely have customers from Alabama, very reputable company, nice people! Make phone calls to Alabama wineries, or visit their websites, see what they are growing. Visit the Alabama Wine Trail website, it will guide you. I have met people who are growing Chambourcin, Norton/Cynthiana, Fredonia, Muscadine, Moore's Diamond( one of my favorites), Concord, Niagara, Traminette there. I want to say Wines of the South competition tends to have good representation from Alabama, so you might pour over their results. Then another good resource is, http://alabamawines.net/wine/, Alabama Winemakers and Grape Growers Association. Plus Auburn University tends to always be researching the best vines to grow in the state of Alabama.
But most importantly you need to know if your soil and lay of the land is compatible for a grapegrowing, because what is being grown five miles away from you may not be possible on your property.