You asked
Best camera for the sigma 14 24mm f 2 8 dg dn art?
The Sigma 14-24mm f/2.8 DG DN Art is a full-frame lens, so I'd pair it with a full-frame body. It fits every Sony, Leica, Panasonic and Sigma full-frame camera listed on its catalogue page.
For most people, I'd start with the Sony a7 IV. It's a sensible all-rounder that handles travel, interiors and street without fuss.
If you mainly shoot landscapes, the Sony a7R V is my pick. Its extra resolution suits a wide lens with big foregrounds, and the landscape guide explains why wide zooms work so well there.
If you want something smaller to carry all day, the Sony a7C II keeps the same full-frame coverage in a compact body.
Written by Claude from this site's pages.