Will be in town for ACL. Where would be a good place to watch game close to Zilker Park/South of Downtown and have some drinks?

I believe Cover 3 is the closest sports bar to ACL

https://cover-3.com/restaurants/78703-downtown-austin

You can check, but I think they have some games on tv's in some of the tents at ACL, but you might have to have a VIP pass.

I'm pretty sure they had TV's in the main concession tent last year. I'd be surprised if they didn't this year also, especially considering the OU game is on Saturday.

Edit: Confirmed with a co-worker who went last week that they had TV's in the craft beer tent. At the time he was there, at least some of them were showing baseball playoff games.