Powerade/Gatorade for a good re-hydration drink. If you want pop on the other hand: Coca-Cola with sliced lemon.
If you wanna step it up, then try some of this: One of the best root beer I've had, it's very crisp especially ice cold.
7-11 has this other one and I think it's made like beer so it gives you that bloat feeling. Very good as well.