I have a Varjo Aero, which is visually excellent but very expensive and probably not portable enough for your use case. The problem is that it depends on Valve’s lighthouse trackers, so unless you’re willing to pack one and a tripod in your luggage it’s a pretty stationary rig. It also needs a 30-series nvidia gpu, which would limit your laptop choices.
All of that said, I mention it anyway since it’s the only headset I’ve tried that feels comfortable for reading text on a giant virtual screen. A 4K virtual screen doesn’t look quite as sharp as a 4K display in real life, but you can tell the difference between a virtual 1080p screen, whereas on a quest 2 there’s no point rendering higher than 1080p.
The Simula is available in a “tethered only” model for $2k, which is the same price as the Varjo. It uses inside-out tracking though, and it has a pass through camera if you want to see your keyboard occasionally, so it might be a better option. It’s still pre-order only though, so it might be worth waiting for project cambria or whatever Meta’s new thing is.