What channels in English do you recommend for learning/studying bitcoin?

I've been learning about bitcoin just in portuguese language (my native language) and i don't know bitcoin channels in english language.

The channels and books in portuguese that i've been watching are, Bitconheiros, Area Bitcoin, Altiere-Estude bitcoin and Bitcoin Red Pill (It's a book, the best in portuguese language)

Basically the english channels are a whole new world for me.