@cephie Great idea. Depends a lot on what you're trying to host.
My intention is to make videos and blog posts about this topic soon- I've been focusing on getting around the Linux terminal in recent materials but I'm hoping to spread out a bit soon.
I'd also like to host a section on my website about it but haven't done so yet.
In the meantime, Awesome Selfhosted comes to mind as a good place to branch off, if not a bit verbose. https://awesome-selfhosted.net/
@vkc @cephie The subreddit /r/selfhosted is also a good resource and a lot of devs hang around promoting and troubleshooting.