Total War:Warhammer series has taken up a lot of my time. I suggest Modding it to suit your play style and desired level of challenge.

Darktide, and vermintide, as others have mentioned if you prefer action to turn based.

Dawn of War series are all good games. The second one in coop mode is excellent.

Spacemarine is an instant classic.

I’d skip Gladius. It’s good, it’s fine. Its a cheap copy of better games with a warhammer skin over it.