This is a paid asset, but now you can download Simple Toon Pro for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Simple Toon Pro v1.0
Simple Toon Pro is a powerful asset that will bring a nice cartoon look into your projects.
-Flexible color settings
-Advanced lighting control
-Outline and transparency
-Shine, rim and specular effects
-And much more!
With this highly customizable yet easy to use asset you can achieve whatever toonish style you want!
•Advanced post effects
•Additional shaders for outline and transparency
•Includes five demo scenes
•Free teddy bear 🙂
Update: URP support will be added soon