No doubt your own research is more valuable than others, here is a lot of new project coming in large quantity but very least of them are based on real business.
pay attention to the following points : idea, popularity, reviews in the media, command. Learn the search for them and know what they are capable of, The utility of their token and the idea should help you decide whether they are good projects to invest with.
This is important to do diligence before investing as many fraud project these days. The above points you mention is very helpful for those who will invest. Like checking the feedback and it's goal to improve the project.