"Made to Stick" I found to be a good book on storytelling. It doesn't position it as "storytelling" per se but more generally about how to communicate ideas in a way that captivate audiences, however large or small.
Anything that forces you to tell stories; creative writing, making videos, theatre, improv perhaps. I think it’s the _telling_ that matters, more than the story. - and I think practice will be much more effective than theory for that.
Build up that sense for what works and what doesn’t by trying and seeing (ideally in a supportive environment - a certain sort of friendship is great for this actually, no need for an improv class)
I'm the sort of person that needs theory to be effective at practice. Without theory, I don't know what to pay attention to. If I just practice without theory, I don't see myself succeed.
https://www.amazon.com/Made-Stick-Ideas-Survive-Others/dp/14...