I made a cartoony model, rig and some facial expressions based on Kursad Karatas’s monkey model (getting harder to find as it is very old) :
https://free3d.com/3d-model/monkey-30245.html.
There’s much room for improvement on the facial features and appeal of the face but these can make fun icons or video tutorial decorations.
The Blend file is available on sketchfab (don’t mind the web 3D preview)