Blender Simple Metal Material – Gold, Silver, Copper, Metallic text using principled BSDF Shader - YouTube
Blender Metallic Black Material using Principled BSDF Shader - cgian.com
Here's a free Principled BSDF Shader guide to help Blender users, an extract from the free PDF guide and YouTube tutorial below, hope you find it useful :D : r/learnblender