In my former life I was a product developer. I liked to tell as many different people about my ideas and get their feedback for if it is dumb or not. In that l

In my former life I was a product developer. I liked to tell as many different people about my ideas and get their feedback for if it is dumb or not. In that list of people will at least be a couple who would be in the intended audience. If the idea is at least positively received, I might make an MVP if it is easy enough, if it isn't, I'll probably abandon it. If the MVP is stable enough, I'll probably point Facebook or Google Ads at it to drive traffic. If any traction is gained, I look at the numbers to see if it is worth it to finish building it, or just leave it as it is running. I'm not sure if the Google/Facebook Ads are still a good traffic driver, but they used to be.