I pretty much only drink water, tea, coffee, beer. Used to drink soda as a kid, but when it stopped being easily available, I stopped without even realizing. Lost 10 pounds basically immediately.

If I'm feeling extra thirsty in a way that water isn't satisfying, I use one of those salty hydration multipliers and I'm sorted pretty quick (I like the LMNT brand since they have good flavors and no sugar)