Maybe you can find this useful: https://c19early.com/
Several well studied drugs are effective for treatment or avoidance of the disease.
https://covid19criticalcare.com/ivermectin-in-covid-19/
https://covid19criticalcare.com/covid-19-protocols/i-mask-pl...
Edit: For an informative, but lower quality source:
https://www.nakedcapitalism.com/2021/05/i-dont-know-of-a-big...