Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Autodesk SketchBook - SketchBook drawing and painting software provides designers, architects, and concept artists the tools to sketch ideas quickly and create beautiful illustrations.
Invision - Prototyping and collaboration for design teams
Clip Studio Paint - The artist's software for drawing and painting.
Sketch - Professional digital design for Mac.