I dunno if you could effectively do a global political channel. In my experience, any coverage of politics needs substantial grounding in the culture of the country. As a feature segment you have to do plenty of background which a native would be well aware of.
There are plenty of British political podcasts that have YouTube channels attached (generally not much beyond a video of the recording).
Examples featuring former politicians include 'The Rest is Politics' and 'Electoral Dysfunction'.
https://warontherocks.com/. Not a youtube channel but pretty good content.
YouTube sucks
https://www.youtube.com/@StrategyPage/videos
Mostly military capability related. Powerpoint level but knowledgeable. Austin and Jim are pretty elderly now though. Beware their over-reaching opinions. I can't believe 'What the Arabs think...' from anyone who can't speak the language.
https://www.youtube.com/@dancarlinpodcaster
Dan Carlin needs no introduction. Not as active now.
All I can think of. Social media has been over-run by bad actors with deep pockets.