Best Natural Pre Workout Alternatives Without Artificial Sweeteners

I am trying to move away from artificial ingredients and I am looking for the best natural pre workout alternatives. Almost every brand I see in the stores is loaded with sucralose and artificial colors. I find that these often mess with my digestion and leave me feeling bloated during my workouts.

I am looking for a product that uses stevia or monk fruit for sweetness and gets its energy from natural sources like green tea or yerba mate. I am in the US and I have seen brands like Legion and Promix that claim to be cleaner. Are they actually as good as the chemical heavy ones for performance?

What do you all use if you are trying to stay natural? I am even open to making my own mix if someone has a good recipe. I want to fuel my body with high quality ingredients without sacrificing the boost I need for my training sessions.