With so much information out there on supplementation for performance, I like to keep things simple.
Protein, creatine, BCAA’s, magnesium and a multivitamin should be a good start that covers most bases (ie recovery, regen, power, strength, endurance).
Here are two companies I trust:
https://www.thorne.com
Let me know if you have any further question.
Be well my friends!
R