The best resources to learn Blender from are still the Blender manual, but that's a bit dry as most manuals are and videos are often better, and so for the rest the Blender Studio folks. Plus, you're supporting free culture works in the process! https://studio.blender.org/ has some resources free, and you can pay to get access to the rest, but they're all under CC BY, which is pretty great.
The second best are tons of shy and excited people on YouTube who want to show you a few tips.
Some of my favorites:
- Harry Blends
- Sophie Jantak
- Deduze
- Pepe School Land, especially the Grease Pencil Random Tips and Tricks series (name is unrelated to the popularity of a certain frog)
Getting started with Grease Pencil first is often a good idea, because 2d is a gentler introduction for many people, but it also eases you into many of the 3d concepts.