What is the best way to organically promote an MVP? (B2C startup)

Hello everyone! Happy new year! For context: We are building ( 2 people ) a social media vlogging app. It helps you capture, compile, and share your daily moments in a 50-second vlog with friends and loved ones. We are constantly updating the app and now we have a fairly stable version that works very well on most devices. Now regarding the promote part I have 2 questions: 1. We managed to get some good views on TikTok from one video (200k+) that helped us get the first 2000 users but we lost most of them because when this happened during the summer the MVP was bad. **We did multiple times similar content but it did not work. How do we do this again?** 2. **How do you find the social media strategy that works best for you and the stage of your MVP?** Do people want to know that you are building a startup? Please tell me your experiences and your conclusions based on your examples or views. I would like to thank everyone in advance!