Video streaming sites are gaining more and more popularity. You can check the popularity of such platforms like Netflix, Twitch, YouTube, etc. You can also create such a site, merely choose a more specialized niche.
For example, think about the medical or legal niche for videos. Such videos are rather popular. You can read an article on how to create a streaming website https://ein-des-ein.com/blog/how-to-create-a-video-streaming-website/ here. There are a lot of tips to take into account everything you need.