You need to follow some professional investors on twitter, they do post yheir recommendations, then you can do your own due diligence and read the chart too before investing.
I think that various ICO and other projects buy their opinions, because there is no sense for popularities share their ideas without any profit.
But if we talk about real analize of the project, i think is very important not only read WhitePaper, but also check GIThub and see what company've already achieved and what they are going to create. Only after this you can invest money(that you are ready to lose)