Trying to Figure Out What Makes an Online Project Worth Growing

hello everyone,
recently i have joined BHW since i m interested in learning about how people realize their ideas in online projects that could be developed over time. the topics that attract me are SEO, content marketing, websites nd targeting the audience who is really interested in what the website has to offer.also, i want to learn about all the decisions that are made by people during this process, from selection of the area for devellopment up to reasons y some actions do not bring desired results.

I think it's better to pick a niche that you understand it. seo is easier if you know what your audience is looking for.

If you make money with your project and if you can increase the money you make by taking action. For example putting money back into your project. Which means you can scale your project.
Some projects are not scalable so figure that our else you will be making little money or no money with lot of effort.