After volunteering for a local computer networking project, I took a ton of notes and put together a free course on YouTube.
The course covered the entire network design, installation, & configuration of Ubiquiti UniFi devices and a Synology server.
With only 9 videos, this landed us over 2,000 subscribers on our YouTube channel: https://serversideup.net/courses/complete-ubiquiti-unifi-synology-network-build/