Check out Root BSD on YouTube (or on Odysee or PeerTube!). He has quite a few interesting videos about various BSDs, and he actually uses OpenBSD on the desktop. Zaney’s older videos are also about BSD, nowadays he mostly covers Linux, but I still like his videos. I also like Joshua Stein’s blog jcs.org, he’s an OpenBSD developer and has some pretty interesting posts. He’s also on Mastodon: @jcs@jcs.org