[iso1631]

Doesn't look like any of these have a network port.

Surely there's a market for a laptop with a good keyboard and real ports somewhere? If I'm at a desk I'll work at my desktop, I want a portable device for doing on site stuff, which often involves plugging into a network

[pmlnr]

Look at Japan only market Panasonics: https://panasonic.jp/cns/pc/index.html

[capers87]

The platform specifications haven't been released as far as I can tell, but i believe the non-slim T models T14 and T15 have an RJ45 port on the right side of chasis.

[freeone3000]

P43 and P53 have this, and might be what you want. (P1 and lower use an ethernet->usb dongle)