Do you have any recommendation on articles or resources for gay parents?

I’m a 21-year-old gay in China. Came out to my parents about half a year ago, their reaction wasn’t bad, they claimed they’ve accepted the fact that I’m gay and said I could live the life I want, but they know little about gay, and they know little about how I feel. For example, they totally can’t understand why I want to tell some of my friends.
They cares about me a lot, I can tell that, I care a lot about them, too, but sometimes it just feels like they can’t get me.
Do you guys have some resources, articles, movies, etc., that can help parents understand the gay things and their gay children?
Thanks a lot for your attention!