David Marquets Turn the ship around & leadership is language is a good start.
Books wise
Chimp paradox (which has a version for young people as well)
Rebel Ideas but Matt SYED
Mark urban’s RIFLES and his other book GENERALS are good passive leadership learning tools, particularly Generals allowing comparisons in leadership style with how things have evolved over the years.
It isn’t one i have read but i am sure it would help. There was a documentary i watched on him which was ideal for what you want. he talked about leadership and management but cann’t find it now - but that book title popped up as i was searching so might help as a non-military application
Would be good to have a ‘library’ of resources people can add to.
FWIW I was researching some leadership theory and it was really quite hard to find the RAF take on it (deep in the AP) but the Army content was very easy to find and potentially a lot easier to adapt if I did want to use it with cadets.
Not singling out the RAF, nothing came up from the RN either. A fair bit from the USAF, USMC and both the Australian and Canadians.