Check out the quality of their social media channels, a promising project will be supported by a strong, active community. Do not trust too much on Crypto score ratings because this kind of scores can be bought for money.
My advice is not to believe the ICO Rating, they are paid to present the project as best they can to attract investors' attention. Do detailed research, be it the team, community, media channels, project products, or the developer's background in managing previous projects ..