Ask HN: What is your viable aka money making startup or side project idea?

I want to be clear before we start. I am not looking for fantasy ideas. E.g. Uber for X , AirBnB for Y. No , it doesn't work that way. I do personally know 3 founders who tried this stuff and failed. Uber is Uber and AirBnB is AirBnb. No more this for that. Also, ideas such as AI, deep learning, space travel require more research work than near immediate monetization opportunities available for solo entrepreneur. Notes app , timetracker, project management software have tons of tools and app so I am reluctant to try in these areas. AI Personal assistant also have large blockade for monetization. At this point I don't have necessary skillset for building AI bots. I am looking for ideas like Improvely, ticket search, fashion cloths and marketplace optimization. I want to know what is your startup idea that could also make money ? We all have ideas but 90 % of them are fantasies or have near zero market potential. You might not have time to realize that idea but I do. You could