One way to start is to check the session that gave at the Drupal dev days Milano in June 2016. I went through the architecture of the module and most common use cases.
I also proposed a Media workshop for Drupal dev days Seville where I want to cover the entire Drupal 8 Media ecosystem from the site builder's perspective. Besides that I also proposed a session about my recent experiments with Elixir. Not necessarily Drupal or PHP related, but I think that looking beyond our bubble can be very beneficial.