Each participant will recommend to you to join the project, which he considers good. But I recommend to use your own head. This will help you choose a good project and gain experience in ICO. Learn to be independent. Here is my list of ICOs to participate: NEX, Hycon, Cardstack.
I agree with Tony116.
There is no best, best is subjective to the person who will be paying the money to participate in an ICO.