Question
The initial idea is a discovery + booking tool for leisurely classes ranging from cooking, learning the guitar, a new language, etc...
Initial thoughts are that this would fall under marketplaces, e-commerce, but I'd like to have a better understanding of how big the market is, and how much of it I could potentially capture.
Answer
Yes there is a huge market for learning online. Just like clarity you just have to find the ones that fit your style of teaching.
Your biggest competition will be all those free teachers on youtube.
Your biggest expense will be marketing.