I don’t have a tablet*, but I have heard that Procreate is one of the better ones. But for my artistic projects, I have startet using Clip Studio Paint.

But the “vector and raster” is a really nice feature. I have also used their resource link function a lot in publisher. Saves RAM, time and makes it easy to update files.

*The ones that is a computer. But I do have a drawing tablet :)

Ask questions of your players to fill in spots in the world, especially when uncertain about if something would be interesting. Tell the story with them, not to them.