The main glTF tutorial explains the concepts of glTF, explaining the format itself, its features and its application cases. This tutorial does not cover implementation details. While it may be a good starting point as a general introduction, more focused tutorials may be added here.

Some examples:

• Explaining the best practices for using .gltf or .glb format. This is already discussed in Best practices for .gltf / .glb glTF#1117 , and the results may be added here
• Tutorials on the implementation of PBR. This has already been started at https://github.com/moneimne/glTF-Tutorials/tree/master/PBR
• Examples showing how to use glTF in plain WebGL or any other graphics API (OpenGL, Direct3D, Vulkan...). This might eventually even be a tutorial on implementing a full glTF renderer
• Examples and usage patterns for glTF in rendering libraries like three.js, Babylon.js and others
• Translations of existing tutorials to other languages (?)
• ...

If you want to contribute a tutorial, feel free to open an issue so that its scope, goals and structure can be discussed, or open a pull request with your contributions.