I have some of my own, but there are some great channels.
Here is a selection from Magnify:
All about Tesla
Amnesty International
world history
Organic gardening
Backpackers Stories
Magnify is really taking off. The number of channels grows daily. There is good traffic on these sites. I am pleased because all my interactions with the Magnify team have been pleasant and I am confident they are going to be a great success.