Ask HN: A good platform for volunteering time to mentor novice programmers?

Ideally I would love a platform or medium that facilitated something along the lines of: I, the (more) experienced dev, have a couple free hours and want to provide my time to field questions on general computer science/programming for junior developers. Before anyone suggest to just go answer Stack questions, I'm specifically looking for 1:1 or conversation style dialogue.

For example, a very new programmer recently came to me with frustrations about the feeling of confusion (that we've all had) about how a React app or Python print statement is somehow eventually just 1's and 0's. That sort of topic I think is very helpful to learn through conversation, and personally I tend to learn a lot myself when eventually questions arise that I hadn't thought of/learned yet.

On a related note if anybody here is a curious junior dev - I have a couple free hours and want to provide my time to field questions on general computer science/programming for junior developers