For starters, off the Top of my head
Daily at least a week before Covid19:
50 mg organic/chelated Zinc
Min 10,000 IU Vit-D-3 daily.
Once you have symptoms:
Life Extension 5-LOX Cox2 inhibitor
Mega Methyl-B12 (bio-active, it is new)
Life Extension Optimized Ashwagandha
Liposomal Vit C, 600 mg/day
Mega B-1
Phytosomal Curcumin
Do you have PM ability ? I think we have free PMs tile year end here.