I think I'm one of the last to use a netbook (an old Asus under Linux) on the go. Unfortunately, this is getting on in years and has to be replaced now. Unfortunately, these small 10-inch devices are hardly available anymore (although I depend on this small format and long battery life for the highest possible mobility).
What do you use now to be able to work on the go for little money?
A tablet with a keyboard (does that work "properly" under Linux?)
A Microsoft Surface Go (is it expensive)?
Or do I have to buy a "real" laptop?
"Real" laptops are also cheap.
Professionals who have to write a lot still have notebooks.
There are also compact or ultra-compact laptops.
For what types of work is it used? It may be worth switching to an Android tab with pen support and additional keyboard (Bluetooth / USB depending on the). Even a mouse would be possible if you missed it…
Optionally even with LTE modem, so that you can use a mobile card for the Internet. Further recommendations can only be given if you know the exact purpose.
In the 11.6 "class there are still some interesting notebooks such as this Acer Travelmate:
