Are there any good online sales classes?

I wouldnt necessarily call it a class but John barrows is pretty good. He can be found on YouTube. Taught me a bunch watching over the course of a few days.

This playlist seems pretty good so far:

https://www.youtube.com/watch?v=h_y2WkZ2JEQ&list=PLNFgwC3AOW...

That I can't say. I took a class in person once a week.

which class did you take?

It's been years now, but it was one of the Sandler Training classes.

https://www.sandler.com/sales-training