Ask HN: Suggestions for product management courses for a software engineer?

Hello! I'm an aspiring PM. I have worked on some side projects which helped me to work with Designers, other Developers and do marketing myself.

I'm an engineer by profession, but I'm really excited when I work on delivering a great product and so planning to switch to full-time PM. There are entry barriers for a job and also I'm not acquaint with the professional side of the Product Management, wondering if there are any courses or resources which were helpful or even experiences who did the same.