They used to make this amazing drink called Extreme Cola or something, it was like Vanilla Coke with caffeine and they stopped making them in 2016. Such a loss. I'd love to have one again.
Tang on the rocks, I know many people see or hear Tang and they move away in horror at it, It's not that bad especially with a splash of Sprite or ginger ale in it.
I don't go outside during the summer if I can help it. So I just stay inside and drink water. If I wanna treat myself, though... I dunno. Maybe I could go buy some creme soda.
I hate hot weather, so I avoid going out in it as much as possible, but I typically opt for water or the occasional iced coffee when I want to cool down. Unsweetened iced tea is also good, though I rarely drink it.