Which niche is better for YT channel?

Hey I want to start my youtube channel, but I’m confused about niche, I’m a 2d animator and want to start a youtube channel where I will put my own stories with the animation style (this channel will not be specific into one genre, like sometimes horror mystery, fantasy, and sometime history related but they all will have my own character and styles) and on the other hand I'm thinking to just create a channel specific to historical channel because audience will come and leavy my general channel because it won't have specific content and it will affect my channel. What do you think?