Theme & Plugin Developers — What checking tools are we using?

I’m grateful for https://wordpress.org/plugins/theme-check/, but it never seems to be up-to-date with current review guidelines and requirements, and reviewers are often telling me to ignore results from the Theme Check.

https://wordpress.org/plugins/theme-sniffer/ was much more in-depth, advanced, and useful, but now that’s been closed.

There’s nothing better than good ol’ fashioned manually checking your code, line by line, and running error and debugging tests on it in a testing environment, but automation in this regard is very helpful too.

So, what tools are we using these days folks? Do you have any recommendations for some sweet sweet software that can scan entire themes and plugins for PHP errors, security/sanitation/validation/escaping issues, incorrect string translation, etc.?