I recently forked the "awesome" list as it seemed a bit abandoned, but I haven't added anything to it just yet.

https://aposymbiont.github.io/awesome-split-keyboards/

(If anyone actually enjoys writing JavaScript, or can do it in their sleep, feel free to take over. I'm 95% a backend dev, so I was just aiming for something easy to maintain, ideally generated from something like a CSV file. The intention is to link to it from Reddit's /s/ErgoMechKeyboards.)