It is not easy to choose a good ico.
You must have an open mind to read and do a lot of research of their projects and have patience to investigate their backgrounds.
You can also check the feedback of other people who have done their researches.
Yes, it's not easy . In fact, not everyone has spent a long time reading and researching information about the project to determine its potential, especially for newbie, they want to have benefit quickly, Any project that makes good advertising will attract them. Please check the important and necessary information of the project yourself for a certain time, and consult other people. That's my way and of course, risk is inevitable