Backstory: Lately I noticed a few podcasts that I listen to have featured "nocode" projects and startups.
The Idea: An online nocode school aimed at Entrepreneurs to quickly test, build and run their businesses.
Deep Dive: Similar to other online courses and schools, you would have progressive content designed to teach students how to go from zero knowledge to operating a full time "nocode" business. Additionally you should integrate a communication platform to promote a sense of community. Building all of this using nocode solutions would be super meta and lend itself to a great case study.
Validation: Makerpad has started to do something like this with tutorials and a community: https://www.makerpad.co/. Hear more about it from this indiehackers podcast episode: https://www.indiehackers.com/podcast/134-ben-tossell-and-sahil-lavingia-on-code-vs-no-code
Monetization: You could sell courses for a one time fee and bundle the entire curriculum in a monthly fee or payment plan. Once students have graduated, you can have a small monthly fee to maintain community access.
Steps to Launch: I would start by building a following. Put together a few tutorials and link them from places like indiehackers and facebook. Try to capture user emails to send them more tutorials and build a relationship with these early customers. Once you have a sizable list, try selling a paid course and then iterate based on customer feedback.