Imagine you are the one deciding, what medium would you prefer?
What i have been thinking is essentially a online meeting, like jitsi meet, which may be simultaneously casted online, or just recorded, and uploaded afterwards. people in meet would be able to ask, and hence it would be interactive. Whenever i have done courses, i have had like a billion questions, and if i do not ask, i do not understand, so i would not want anyone else to not be able to ask too. live chat is also interactive, but there is always a delay, and writing your doubts, is sometimes hard (you sometimes are so confused you do not know what to ask), so meeting helps with that.
in any case, if you need any help (for example course work or books), feel free to message me.
thankyou for encouraging. I will try out a bit. next thing to decide is topic to begin with, and how/where it would happen.