Yes, shotgun.
And you’re considering a long gun or hand gun?
I know it's been said but I'll repeat it - it isn't the disease, it's the crazies who are the problem. If you still have the shotgun, buy ammo. Actually getting your new gun at this point is a project of several days at best. Make sure there is ammo available for it - buy the ammo when you give them the form if you can. Your mileage will vary greatly depending on where you are. Best to you.