How To Immerse With More Complicated Japanese?

I really enjoy NHK news easy to immerse with as I find it very interesting, however it has become too simple and I don't usually get many new words. I have finished the core 2k/6k deck, and have been sentence mining for around a year so I know most of the vocab for everyday Japanese which is great and I love understanding it. I also immerse with simple manga and YouTube videos, and I try to do anime as well.

However, I want to move onto some more complicated topics to gain more complex /technical vocab such as vocab needed for N1. I love history and politics, so I was wondering how useful would it be just to read the actual NHK news and scroll Japanese Wikipedia? I usually do those in English anyway so was wondering how useful that would be in Japanese. If anyone else has any recommendations that would be great, maybe documentaries?

by TheDonIsGood1324