There are dozens of jschan instances running on the webring, the fat kike pedophile Mark's 8moe. Also endchan, and the other 1000 chans for the sake of being a chan. There's even a site that catalogs them all https://allchans.org
image board culture is dead and most of them have such a low PPD count that no one uses them.
The Internet is dying - and with it, image boards, forums, and anything that isn't hyperdopaminergic content troughs is going with it. People just sit around in their Discords all day jacking off.
The only solution is local growth. If Cyberix wishes to grow, we will all need to start inviting people who we know and meet here. More points if we know them IRL.
This is how we grew our own sites in the very early days of the Internet, anyway. No webrings? No search engines? That's fine.
I can plaster fliers on streetlights and let people I know who are interested in tech about a particular site, and it'll work so much more better than trying to appeal to the spiritless masses that inhabit the lowercase-i internet today.
It was done then, and it can be done now.