miniminuteman and Archaeology with Flint Dibble are both excellent archeology channels. They fight misinformation put out by grifters like Graham Hancock and share really interesting actual archaeology.

Esoterica is a fascinating channel which explores the less well-known aspects of religion and philosophy from an academic perspective.

Sebastian Lague makes very cool programming videos. He does coding adventures where he sets out to build something from scratch (e.g. in his latest video, he made a software rasteriser), going through the basics of how it works and explaining the challenges involved. The thing that sets his videos apart from coding tutorials and videos that explain how things work conceptually is that they follow his journey as he is learning himself. He doesn’t exactly go in ‘blind’ (he is a very skilled programmer and has a good idea of what he needs to do), but he also doesn’t immediately have the optimal answer he copied from someone else or prepared in advance.