How about a video or two on open source SIEM & SOAR tools? I can only suggest Wauzh as an OS SIEM. Wasn’t sure if you and/or CNWR have experience or suggestions on this topic.
Wauzh is nice and a much more complete system https://securityonionsolutions.com/ which also has Wazuh. I do plan on making a video on it, just not any time soon.