I’m late to the party, but if you’re new to Civ and looking for which game to start on, ignore the people who say that you need the DLCs for the “complete” experience.

I started on Civ 6, and fell for this, getting a complete edition (at a deep discount). When I tried to play it, I was quickly overwhelmed by the complexity. Now, 80 hours in, I realized I can play with just the base game rules, and that’s what I’ve been doing, and now I yearn for one more turn. I’ll eventually start playing with the DLC rules, but not before I get a good grasp on the base game.