This sounds like snark but it’s not intended to be: do you really need sources to learn narrative control? Perceiving how narratives work seems to be a skill that almost all humans are very good at naturally. I acknowledge that shaping narratives is a different skill set (especially the parts that require putting yourself in a position to shape narratives effectively), but in my opinion if you’re already asking the question you already have all the foundational knowledge and awareness you need to start exercising those muscles as well.
I get the point, but the reality is that this goes way beyond business communication. And yes, given enough time almost anyone can learn almost anything, but we're also human with limited time and it simply makes no sense trying to learn everything from scratch. You gotta know when to ask people that are experts in their respective fields.
Not exactly what you asked but I think the same approach would work: I set the intention to gain insight into how stories work. This intention alone was sufficient to massively increase my abilities in this area, because during "idle time" my brain would mull over / analyze stories I'd heard recently.
So I think for PR or whatever the same thing would work, simply deciding to become skilled in this area and you will naturally begin to pick up the patterns already present in your reality.
When did I say it didn’t go way beyond business communication? That’s largely my point: this is a basic human skill in the modern world that I would think existing for 20-30 years would give you plenty of experience in navigating stories told by others as well as using your own narratives to steer outcomes.