Skratch Labs Super High Carb Sport Drink Mix - Raspberry by Skratch Labs — Light tasting and not too sweet for 100g of carbs in a single bottle!
HYPERLYTE H1C by Hyperlyte — For high carb, high sodium, and caffeine, this is great. I love that they use green tea extract for the caffeine which can be easier on the gut than synthetic caffeine additives.