Electrolyte/hydration powder

I’ve been looking for a new Electrolyte powder. I currently used Liquid Iv but am trying to branch off to a newer/cleaner one. I’m not concerned with pricing or taste as much as ingredients, what is the most bare bone clean powder currently available? I currently have some on the way, Lemonlyte from organsupplements (looks kind of sketchy), but wanted to get some advice from others for any future purchases.

For my workouts I currently do 2-3 hours of MMA training 3-5 times a week and normally leave drenched in sweat. Any guidance/advice is appreciated!!