Participating to ICO is also a good strategy if you want to earn huge profit because most of the time they exceed the value of their ICO price but be careful because there are a lot of scam projects so better do your research before investing and avoid hype projects. I can say WPP Energy is my top ICO im participating right now , they do have a solid team and advisor composition and project that is already implemented that makes them one of the best Renewable Energy Provider because of their advanced technology that will solve energy crisis worldwide !