If you're looking to give your 3D models a 2D pixel art look, Lucas Roedel has created a free tool that works with Eevee, supports Bayer dithering, and handles multiple light sources.
Lucas just released a step-by-step guide demonstrating how to use it with the Pokémon Tatsugiri as an example. The tutorial covers the entire workflow, from modeling in Blender to exporting in Unity: