Three channels I'd describe as insightful without any feeling of exaggeration are Winston Sterzel's and Matthew Tye's vlogs on living, working and travelling in China. I had very little idea about Chinese society earlier except what's portrayed in media, but now I feel a lot more informed thanks to their videos.

https://www.youtube.com/user/churchillcustoms/about

https://www.youtube.com/user/serpentza/about

https://www.youtube.com/user/laowhy86/about