If you want, you can promote absolutely any topic on YouTube, only if such a topic is not prohibited by YouTube administrators. But in general, you can work with everything. For example, recently published information in this blog about how you can promote even a religious YouTube channel
https://gyre.pro/blog/-creative-video-ideas-for-church-digital-ministry I think you will find it interesting to read about this.I think you will find it interesting to read about this.