There is no option to indentify the best ICO but research and gathers knowledge. If you dont want get scam you have to research. Its not easy to get scam by an ICO, before making decision to invest in ICO make sure that it has a good developer team and the project is good and realistic. For Good ICO check this list Product how effective could it get in real time developer team how experience and their influence, carefully read whitepaper understand the business roll out process and 100% grammatically correct. Make sure that their team member expert on crypto currency. Checking the team member background. Browsing to find information about the opinions of people about ICO you want to follow. If many people give a positive impression then the ICO is good another this check out that their goal and vision. The goal should be achievable and not only be put in imagination. Check if the team has the capabilities of doing that project by checking background.