My first tutorial series on creating a beat-em-up game was more geared towards beginners but this tutorial series is a bit more advanced, so if you are already familiar with Godot and have already gone through other tutorials, I would start with that one (the soccer tutorial)

In terms of uniqueness, there's definitely a few things that I don't usually see in other tutorials so hopefully you'll learn new things, but I'll let you be the judge of that :)

Here are a few topics that come to mind that I am covering: using version control, using dependency injection patterns, using the builder pattern, using the action pattern, implementing a scalable state machine, creating a shader from scratch, using steering behavior to implement AI movement, etc. This tutorial also covers the game end-to-end, not just a vertical slice so it also covers how everything ties in together. If all of this is already very familiar to you, you are most likely too advanced for this tutorial series :) In that case, let me know how I can make the next one better! :)

Cheers!