​I built a website but I don’t know how to marketing

I design a webapp as a thought and growth community that people can record their thoughts and share to others or learn from others. You know, I post a thread in x, but it seams nobody wants to try. So I come here for some suggestions sincerely. I built an another product for examination and got 2 subscriptions and earned 26 rmb last week. But I know the market is small and I don’t want to market it. But now I want my new product to get more users and maybe earn some money. Thanks for any suggestion. Thanks!