Both Fredrik at Weemedia and we at Qred really advocate this type of film - a so-called "talking head".
That means standing straight up and talking into the little black lens. It will, with a little practice and charisma, be the most engaging content to watch. Other tips include filming a lecture or presentation. That way you'll quickly forget it's being filmed and you'll kill two birds with one stone by lecturing and creating content at the same time.