If you are looking for an awesome channel that covers this kind of stuff in a non-fantastical, very logical manner, this guy is incredible (John Michael Godier). The Fermi paradox is one of his best topics he covers.....
The only issue, is this guy has such a relaxing voice, it's almost impossible to not nod off if you listen in bed. He's like the Bob Ross of astronomy. He has his main channel:
https://www.youtube.com/c/JohnMichaelGodier
And his other channel where he interviews a lot of heavyweights in the Astrophysics community:
https://www.youtube.com/channel/UCz3...oktNgCvvheuQDw
Anyway, he's stellar at what he does, and makes a lot of these complex topics a lot easier to understand.