Personally , I don't think there should be an ICO without whitepaper. The whitepaper bridges the gap between an investor and a company. Can we say a ICO without a whitepaper is a scam? Or what can you say about an ICO without whitepaper
Check out this article to help choose the right ICO
The Evolution Of ICOs: Whats Changed?https://medium.com/financex/the-evolution-of-icos-whats-changed-f3171201f7ff