You have to look for that "promising" project you are talking about. Learn about existing and new projects. See if they have anything new to provide to you. Read about them and you will know if they are a "promising" project or not. But don't get fooled by just reading the whitepaper or articles. See if they are actively developing or not. There are projects that say they will do all the shit, but once they start, they stop developing because what they wanted to achieve was impossible for them. The project eventually dies. Projects that are based on current trend and hypes are most likely scam. So don't invest in those.