If you're looking for video makers, i would recommend Zoe Baker, which has an academics background, and Andrewism, who is may be less strict on reference than you are looking for, though. Both are quite focusing on anarchism, but Zoe sometimes talks about relations between anarchism and marxism.
If you happen to speak french, or if anyone speaking french finds this comment, i also love the Minutes Rouges videos.
I'd recommend that you try to learn from different movements, communism is very prone to diversity (aka groups and movements are splitting and fighting all the time), so you cannot really know one movement without knowing what its detractors say.