We are a quarter of the way through the season. Braves have the 1st, 10th, and 12th best position players by fWAR in the NL. They also have the 1st and 7th best starterse by ERA in the NL.
Honestly I'd be fine with most packages for Alvarez. His current contract runs through 2028 which is Acuna's last year. I've been of the opinion to go all in to maximize the rest of Acuna's time here and Alvarez would qualify.