Do this no longer work? https://github.com/sindresorhus/quick-look-plugins
Quick Look is super useful indeed. Introduced 2007. Plugins make it even more useful (eg for json, torrents, etc.)
If you know about brew you can also find a bunch of extra quicklook plugins: https://github.com/sindresorhus/quick-look-plugins
Works on and off for some things (video previews for example) but overall worth a quick "brew install" in my opinion.
indeed, there are tons of modern QL plugins on GitHub even.
just a few I spotted in a quick search:
https://github.com/sindresorhus/quick-look-plugins
https://github.com/Nyx0uf/qlMoviePreview