Edit: Oops
After re-reading your post, I misinterpreted it the first time. At first I thought you were looking for tutorials on how to use KiCad. A tutorial for learning electronics is something completely different.
Are you aware of:
and:
This older post also has a review of a beginners PCB, and hints to improve it.
If you prefer video’s, several youtubers have made video tutorials and they often have a link to some git repository for the project they made.
“Hackspace” magazine has also made a multi part tutorial in their magazine:
But overall, it really does not matter much whether you connect a wire to a resistor, a capacitor or some IC. The principles are the same. I think it’s best to start learning KiCad with a schematic that has around 20 schematic symbols. (About the size of the LoPower2 project) If you start with a smaller schematic then you go quicker through the tutorial, but maybe too quick to absorb the stuff. If you start with bigger a schematic, then it becomes repetitive and tedious, especially when you make some mistakes (which is likely for a beginner) and have to redo a significant part of the project.
But there is no need to re-create the same PCB as used in the tutorial either. You can just as well start with a schematic that has your personal interest, and then apply the same principles and order as shown in the tutorial you are following to the schematic you have. But I do recommend to start with a schematic that is known to work, or else you are mixing learning KiCad, with designing electronics, and those are two different topics.
You can also use RepoRecon. With it you can search though some 18000 KiCad related projects.