I recently added Wander to a website of mine (https://www.heyhomepage.com/wander/). Before that, I became a proud member of the small Tech Makers webring (at the bottom of https://www.theredpanther.org/).
Even before that, I just implemented a blogroll (or list of shared links, as I prefer to call it) at https://www.heyhomepage.com/?module=timeline&link=1&view=sha... Maybe your blog is also in it!? I manually picked most of the bookmarks/feeds I follow from HN.
The basis of all these rolls, lists and rings are - of course - hyperlinks. RSS and OPML are silently working in the background. I think there's still unfulfilled potential for RSS as a replacement for social media, because the open web is already social media.