For Elder Scrolls, I’d recommend giving either Oblivion or Skyrim a whirl, and then after you feel done with one, try the other. In my opinion they are both great for different reasons, and they are different enough to feel like very different games in some ways.

There’s great modding resources too if you’re into that. Even light modding like some QoL upgrades or bug fixes. I’m not talking crazy mods.