>>344091985
Probably Vive Pro 2 with a DAS and Index controllers, plus FBT and a Face tracker if you play VRChat. As a bonus, you can grab the Vive wireless kit and use that when you're fine with trading resolution and refresh rate for wireless. You can also add an eye tracking addon when that comes out. 
Pimax 8K X would be an option too I guess if you're fine with losing pixel density, refresh rate, and wireless support for more fov. It already has an eye tracking addon though.