A little box like this could allow you to plug big big monitors to any laptop though [1] (been using it and works fine). I almost never open up the laptop and use it directly.
... You can put a big disk on a laptop, USB3 hub, etc etc
I think main thing missing for me is a beefy GPU and maybe a bit more RAM.
1: https://www.amazon.com/gp/product/B0838WTFD1
