Golden Boy, Shirobako Recommendations
I make this recommedation only for Episode 6 from Golden Boys "Animation is Fun!" which tell story about kintaro working as production assistant in animation studio (just like aoi from shirobako)
This actually "hidden gems" since Golden Boys infamous as ecchi anime
If you don't like ecchi content but want to know how animation studio working to make anime, You can skip first 5 episode and just watch episode 6
Because Golden Boy is 6 episodic OVA with 6 different storys which each episode has a different story and don't have any connection between in.