I'm not sure what you're trying to find. The main Laravel docs are fine for 90% of what you would want to do. If you're digging into the core of some internal class trying to decide if you can re-use something elsewhere, that seems edge-case-y.

The ORM, relationship model, templating, and routing are all thoroughly documented in the main docs. If you want to find out what obscure methods might be available for your custom package, you're probably competent enough to parse the auto-generated code docs or read the source directly (which is also very clear and well organized).