Do you guys recommend anything?
Age of empires definitive edition is going for $5, though they broke linux compat a few months back.
According to ProtonDB, it seems to work fine. AOE 2 seems to work after tweaks. AOE 3 seems to work fine if you disable Steam overlay.AOE 4 seems okay for single player, though it seems YMMV with a multiplayer fix.
If in doubt, check proton DB for tweaks.
AOE2 DE doesn’t work fine scroll down to all the people saying it doesn’t work on their flavor of proton. I would know I bought it couple months ago and refunded it because it just wouldn’t work. It doesn’t seem they fixed anything either.