Networking is one of those topics where it is easy to get stuck, because the software side (IPs, DNS, ports) and the hardware side (modems, routers, switches) only make sense once you see them together. These channels each take a different angle on that, from the very practical to the exam-focused.
Net VN — Extremely practical, hands-on videos: configuring routers and modems, managing connections, and working from the command line. The channel to reach for when you have a specific device in front of you and just need it working.
Network Direction — Clear explanations of the fundamentals: how networks are built, how firewalls and LANs behave, and why. A good bridge between “I can plug in a router” and actually understanding what is happening on the wire.
NetworKing — Structured, exam-oriented training built around the Cisco CCNA (200-301). If you are working toward the certification or want a rigorous path through networking theory, this is the most complete series of the three.
Start with Network Direction for the concepts, use Net VN when you need to actually configure something, and move to NetworKing if you decide to go for the certification.