I would recommend just setting up iptables & crowdsec. Open only the ports your services need, and add the relevant plugins to crowdsec. Nothing should come through.
If you have services that allow people to upload files, that's a different story.
I watch some game playthrough streamers. I don't have time or the hardware to play, so I "watch" them in the background while I work. There's a lot of shitty content out there, but the ones I watch are really decent people, some of them with only <100k subs. Really knowledgeable about the games they play too. I am talking about people like Rhadamant, Quill18, Blindirl, ChristopherOdd...
15y club here. Still go there from time to time, as there are very specific tech communities that I go to for help, unfortunately, but most of my social media is over here.
I used to have everything backed up to a 2TB USB drive. Which I accidentally dropped down the stairs. I lost thousands of family photos and documents. That changed my backup perspective.
I now have a Synology NAS, with 12TB in a RAID5 array (for a bit of disk redundancy). All my home devices, Proxmox servers etc back up here. The NAS also holds a few TB of media. Attached to it I have a USB hard drive (also 12TB). The NAS gets fully backed up to the USB drive nightly.
I also have a remote Raspberry Pi with a smaller USB drive (4TB) attached to it at my brother's house (in another country), where I backup most of the contents of my home NAS. I don't back up the media, just the important stuff. I might have to upgrade to a larger drive...
A powerful hairdryer. At one point we had 5 people in the house with long hair, some washing it daily. One day I was away from home and the place I was staying at had a large, professional looking hairdryer. I didn't know that you could dry long, thick hair in just a few minutes. I bought one for home immediately!
I would recommend just setting up iptables & crowdsec. Open only the ports your services need, and add the relevant plugins to crowdsec. Nothing should come through.
If you have services that allow people to upload files, that's a different story.