My producer, Neigsendoig, might have a good start, as I edited for him in the past.
What he tends to do is be more analytical with his work. However, in my personal opinion, based upon what you're going for, I would personally say to find your speaking style, and then advertise to that specific demographic. Sendo (as Neigsendoig is usually referred to) tends to stick with what he does, especially when it comes to his discussions.
Long story short, find something you're passionate about, and talk about it. YouTubers tend to well when they stick to what they're best at.
Neigsendoig (my producer) and I started to shy away from Flatpaks. We've hated Snap already, and rather distro packages, third-party compiled packages and AppImages.