I'm afraid I haven't read any C++ books. I'm sure that's where some of my strong biases come in; I'm all self-taught with some cppcon videos and attendance sprinkled in for topics that I know I'm weak in.
I can recommend a Slack [0] or Discord [1] though. There are plenty of other C++ people who can make such recommendations.
I read some of Effective Modern C++ but it seemed to be more a list of footguns and poor design decisions in the later C++ editions.