For node-based normal map painting on 3D models, top tools are Blender’s Texture Paint + Shader Nodes, Substance 3D Painter (with node graphs), and Marmoset Toolbag—they balance hand-painted details with procedural adjustments seamlessly.
These tools let you preview lighting interactions in real time, so you can tweak small details (like scratches or pores) precisely, ensuring consistent surfaces for both realistic and stylized work.
New to node workflows? Blender is ideal—it’s free, has integrated tools, and lets you practice blending painted and procedural normals without added expenses.