I just read your post. It sounds like you need help with your content
I have a good solution for your project, but it doesn't include TikTok neither Instagram streaming but includes Facebook, YouTube, Twitch Flere
This is Ramesh
Hope you are doing well.
I’ve read your brief and can see that you’d like to build a website. Well, I can do this as you want. As I have 10+ years of experience in this field. So contact me iFlere
This turnkey BroadcastLiveVideo solution is what you may need to quickly start with your project.
Deploy own live video broadcasting platform.
Includes support for broadcasting HTML5 WebRTC, HLS from RTMP, RTSP, WeFlere