I was using Wallabag for years prior to around a month ago. It was largely working fine aside from being a bit slow and resource heavy.

Looking around at other self-hosted options in that space brought me to a few other contenders like Shaarli (https://github.com/shaarli/Shaarli) and Shiori (https://github.com/go-shiori/shiori).

Shaarli has been around forever and is insanely quick to load and add links, I just wish it had some sort of web-clipping support.

Shiori seems ideal as a replacement, but it was essentially unmaintained for 1+ years, though a new maintainer stepped in within the last few weeks and has been pretty active during that time, so hopefully optimistic.

I'll be watching Shiori for the next few months and see where it stands with development, then decide to make the move or not.