Combine wine and salt; pour over halibut. Marinate in refrigerator at least 1 hour. Drain halibut on paper towels; dip both sides in bread crumbs. Place halibut in shallow buttered baking dish. Combine sour cream, mayonnaise and green onions; spread over halibut. Sprinkle with paprika. Bake at 400°F for 10 minutes per inch of thickness, measured at the thickest part, or until halibut flakes when tested with a fork. Makes 4 servings.