I follow some parts on Bejarano's [0]. It was discussed on HN https://news.ycombinator.com/item?id=18099835 (6 months ago)

macOS Security and Privacy guide [1] also a recommendation you can try.

[0]: https://blog.bejarano.io/hardening-macos.html

[1]: https://github.com/drduh/macOS-Security-and-Privacy-Guide