A7r V lens recommendation?

Would I be in need of this camera? Absolutely not but I am drawn to great deals. I managed to get this camera for 2000$ at an auction. I’ll be going from my A6400 and I was wondering if I should get the DG DN art 24-70mm? I want to use the camera for portaits mainly and when I travel. Heavy camera yes but I am always carrying my huge messenger bag with me and once I get a bag organizer to protect the camera I will bring this camera with me everywhere.