Lobste.rs comes to mind. High enough friction that, even as a seasoned participant here, I haven’t tried over there yet.
I've wanted to join lobste.rs for several years but don't see any way to do so. I think that might be a bit too far in the other direction.
Wow, i just noticed, that they block access from Brave Browser.
That looks interesting, but I feel like it’s likely to be close to impossible to join. Feels like it would be weird asking someone you know for an invite.