What should I stock up on for beer virus?

Current inventory:

.22lr rifle X1

.22lr revolvers x2

.22lr ammo X1000

AR-15 chambered in .300blk

30-round magazines X3

.300blk supersonic ammo x150 (need more, shit is expensive)

12 gauge pump X1

12 gauge SXS X1

20 gauge single shot X1

20 gauge semi automatic X1

.410 side-by-side X1

12 gauge slugs X20

12 gauge buckshot X50

12 gauge Birdshot X200

No .410 or 20g ammo :(

9mm pistols X2

Magazines X 4

9mm target ammo X1000

9mm defense ammo x50

What should I prioritize?