DrawPile - Drawpile is a drawing program that lets you share the canvas with other users in real time.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
PaintTool SAI - Learn to draw in different ways.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Excalidraw - Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.