Not recommending a specific laptop (at least not at this stage anyway) but a couple of points, nevertheless:
Do not get one with a Broadcom wireless chipset - you won't be getting it to work with Linux without a lot of difficulty (involving NDIS wrappers, if even then). Avoid them like the plague and make sure you get one with an Intel wifi chipset.
I used ...
I have Wacom Intuos CTL-4100 tablet. I am using this with Xournal++ software (on ubuntu), works pretty well. It has pressure sensitivity.
The main downside in my opinion is that as it is not touchscreen but essentially a trackpad, you have to watch your screen, not your hand while writing, and handwriting is a bit worse than on paper. But good enough for ...
Option 2 would be my choice - a drawing / graphics tablet something like this. This would provide a more natural drawing experience as it is a matt surface. It is also considerably cheaper than the other options due to the fact it does not display an image, (or allows an image to pass through in the case of the touch screen overlay) leaving plenty of ...
shows three RS485 touch displays. Please contact the sellers for volume pricing, dimensions for mounting hardware and bezels, and how visual elements are configured to the display.