Sunderland was good. I think it’s unusual though for a team to grant that much access to their players and management while seasons are ongoing. They found some good fans to feature also that helped the story.
Amazon has a few of them, Leeds was in a similar vein to Sunderland and was good, the Man City one was the exact opposite- they won the premier league and got to the quarter finals in the champions league that season. If you want to see behind the scenes of a winning club house, it's great.