If you're working on an anime or toon-style project and need a simple way to add stylized outlines, check out RUIDO VFX's Ultimate Outline Generator. This add-on lets you quickly create crisp outlines, adjust thickness, and apply colors, all in just a few clicks.
It's fully compatible with Blender 5.0 and Eevee. The Ultimate Outline Generator is non-destructive and comes with a Remove button, which restores the object to its original state.
Purchase it here and explore a few other useful tools for NPR Blender projects, such as Omar Faruq Tawsif's CR Watercolors, Zhihao Yao's InkTool, or Pencil Pro by CGMatter: