Stylized shaders addon + 18 NPR shaders for blender 3.4+

Stylized Shaders is a powerful tool designed specifically for 2D look development. It offers a collection of 18 unique procedural shaders, each with its own distinctive style. This addon is compatible with Blender 3.4 and newer versions

Features
Experience a seamless and user-friendly interface design that simplifies your workflow. With just a few clicks, you can effortlessly select, assign, add outlines, and set up your entire world. Enjoy a hassle-free experience as you navigate through the intuitive interface and effortlessly customize your settings with ease.

You can find all the other info in the documentation

here are some of the use-case scenarios.