I used to makes a lot of maps like this or using a GIS of variable quality, interest and end result. Also, I didn’t check if I made some spelling / grammatical mistakes back then on this one, but since the word count is low it should be fine, even if I messed up with fewer.
You do the same with this website (https://minecraft.ign.fr/) to a 5x5km area at most. It’s a French service, it works for Wallonia too. And you should be able to export the rest of the world by changing the source to OSM, but I never tried that.