I have had the good fortune of working with great product managers throughout my career and have closely observed the problems PMs face in their apprentice and journeyman years.
I am planning to put together a cohort-based course focused on helping middle career product managers: "Surviving and Thriving in Product Management". Do take this survey if you would like to be a part of the beta (or share with PMs in your network who will benefit from this): https://wzd1ybxabik.typeform.com/to/XKxNpr6Q