Sketch & Toon effect in unity

hey. anyone knows how to create shader and image effect to accomplish a Sketch & Toon effect in unity?

 

There is multiple technique, but you probably want to start with unity chan shader:
http://unity-chan.com/download/releaseNote.php?id=UTS2_0&lang=en

Then tweaking it up you get you desired result

 

A little more expensive than most systems, but I use this to generate my outlines.

https://roystan.net/articles/outline-shader.html

 

There is also Amplify, even pricier I know, but it can do a wide range of toon effects including falloffs and dithering. https://assetstore.unity.com/packages/tools/visual-scripting/amplify-shader-editor-68570