@AkbarShabaz go to google maps, zoom in on Atlanta. Type in coin shops. When you are done with that, type in pawn shops.
You are looking for gold and silver bullion coins or bars.
Here is a search I did on craigslist in Atlanta by typing in silver coins.
Just so you know, it’s not the time to be picky, if you can get them, you’re lucky, if someone is willing to sell to you, buy them.
Contact this guy and buy everything he has if you can. Just north of Atlanta.