Start by soaking as much at possible with penetrating oil.

(There are quite a few and I've used most of them, I don't have a particular one in mind.)

Loosen but do not remove the lug nuts.

With the wheel/tire on the ground, turn the steering back and forth. (Start engine if necessary)

Short movements back and forth should start to break the wheel free of the hub.

If that fails. Applying heat to the wheel/hub joint will be necessary.