Landside, walkable to the museum with a bar (15 mins) is Hammer's, Malone's, Lickety split, Spondivitus (as I call it), and Ruby Tuesdays (bleh) + whatever is in the Hilton now. I'd be pushing my luck but could attend an airside (SC) gathering if that's the popular choice. Last time I did that to meet a friend the Dom was out of stock , but I was able to discover my new injury implant didn't trigger the metal detector at TSA pre.

There's also Nouveau and The Corner Grille by the College Park MARTA stop that I could do, but some kind of ride to the museum would be needed/Uber. I'm not condoning it, but you could probably get on the Hilton Airport shuttle and walk from there as well without any questions asked. The Embassy Suites is also brand new, but watch out for the long lines at the Delta Community Credit Union ATM!