Do you know a youtube channel that is smart about reporting about spaceflight without overt fanboy biases?
Actually, yeah I do know some!
Probably the best source has to be Scott Manley, he reports on every rocket launch whether it’s in the US, China or anywhere else. He doesn’t seem to have any particular bias, he just likes space. He’s also really good at explaining things and actually qualified to talk about the subject, with his degrees in astronomy and physics.
There’s also Tim Dodd, everyday astronaut. He likes to do deep dives on how rockets work and compares various rockets and their capabilities. I wouldn’t say he’s unbiased so much as just a fanboy of all big awesome rockets…
They both like to do live streams for big exciting launches. Tim is so good at the streams, that one of the smaller rocket companies (I think Firefly or Astra) recently hired him to be the commentator on their official launch stream. Heh, then they didn’t actually make orbit… Doh!
And as you mentioned, Smarter Every Day is also really great. Destin isn’t really unbiased but he’s real up front about where his biases are. It’s clear that what really matters to him is the science and understanding what’s really going on.