My most viewed KZbin niches not relevant to you, but what I look for in a channel is detail orientation. I am almost always trying to learn something so I like Tubers who take the extra time to research and plan. I avoid the Tubers who are trying to satisfy the algorithm by posting more often with less well thought out topics that are easier to edit. I understand that need but the community in the comments trends downward. Especially when the Tuber says something without much thought behind it, the comments turn into an uninformed debate. I like debate but they go better when the video being debated has a lot of meat.