On the other hand you could always get yourself something more unique, if you are tired of having American beverages. Everyone and his grandma drinks American corn based sodas on the field, thats why I only have:
Famous for proving itself worthy on the Jungles of Mexico, El Salvador, and Nicaragua, the legendary Jarritos is the #1 option for those with rebel preferences.
Its Sugar cane based system is what makes Jarritos the most reliable flavour IN THE WORLD.