the most important thing, in my opinion, is the team and the whitepaper. I've seen a lot in this forum about whitepaper counterfeiting. From the whitepaper, you can see all the explanations about the bounty/project, whether impressed fraud or not.
Whitepapper is not enough. The information provided on the whitepaper is what the team want the outside world to see. Most important is the partnership, how far are they Close to fundraising goals because technically the success also depends on amount raised to develop the product. You can check expert opinions and reviews too but there are paid reviews these days