You can refer some website review and rating ico if you dont have experience. I ussually refer website:
- trackico
- icorating
- icobench
You can over view about ICO from their. Then you can check detail as: View white paper, join telegroup and ask them about project, view team profile...
I do not fully trust them, I still doubt whether they are giving a correct review. after some time ago one investor said that the ICO rating could be sold by the ICO Team. I did not say the details of this information to maintain their privacy.
how come that is so ... if many know this it might be possible for someone to be hard to believe in the ICO and consider ico a scam and this could affect the crypto world.