Ask HN: Small-cohort based "MOOC" like the original YC StartupSchool?

I still think back very fondly to the original YC startup school experience, where groups of around 10 startups were paired with a mentor / facilitator from a previous YC batch and met once per week through video chat to share updates with each other for around 12 weeks.

I found this really helpful and great for learning and focusing as sharing progress with the group kept you accountable and sharing your struggles and tips with others made for accelerated learning.

I haven't found anything like this and I want to create something, not only for startups but for other types of learning. Would that be something people here are interested in? So an online tool where you don't mainly watch videos or get assignments but where you can socialize and work together with others and keep each other accountable.