Beside being expert in the field about which they are going to make video, what are other qualifications needed to become a youtuber. Moreover, what do you think can make you stand out from others?
It depends on the content you produce and your team.
For example:
You need to know about sports when making sports channels.
You need to know how to film if you do it alone.
In order to become outstanding, I think you need to produce unique content with a high degree of novelty.