So you have a lot of suggestions in this thread.
I have an unconventional one:
Red hat.
You can use it for free as long as you register on their website.
The benefit: lots of documentation, a significantly different way of thinking about things (it asks you to define a compliance posture out of the box lol) and a package manager that does a lot of things right.
You said yourself youve been in the game for a while. Why not try being agent smith instead of neo?