Epic Pen - A windows tool for drawing over your desktop and applications
Presentify - Screen Annotation and Cursor Highlight for macOS.
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.
PointerFocus - Allows you to highlight the cursor using either the toolbar or hotkeys.
PaintTool SAI - Learn to draw in different ways.
Pen Attention - A free program that places a highlighted circle or square around the cursor for use in a classroom...