I`m looking for a digital painting program to use with Blender

That’s wonderful Herbert. It’s a great program that isn’t very well known among artists. I also suggest trying Paint Tool SAI because when used with the stylus, I found art lines to feel more natural and more beautiful.

In addition, if you’re constantly downloading reference materials, make sure to watch this thread of mine because this tool is extremely powerful: [Crucial App] Smartly organize your Blender assets and ref materials