If books are more to the OP's liking, some that I've read that I've found useful:
- Building a Home Cybersecurity Lab
- Deep Dive into Linux Networking: Configuring Firewalls, VPNs, and Secure Connections
- The Home Network Manual
- Home Networking Bible
ETA: One more. This is more of a start to finish kind of course but networking is definetly covered. Takes you from day one with your linux distro and a blank slate, all the way to scripting, all in easily digestible chapters: https://linuxupskillchallenge.org/