In my opinion, only the ICOs that were serious in achieving their goals will remain. You can determine one project is good if they can be able to provide a working product since it gives more confidence to investors that they know what they're doing. I've been keeping an eye out on NeuronChain for now. They're one of the projects out there who developed their product first instead of making promises with a whitepaper.
And that is what it should happen, we need to increase the knowledge of the community so they do not invest in obvious scams, recently I have seen efforts from many members of the community to try to bring attention to the amount of scams that are in the market and they are doing a great job exposing them, now the only thing that you need to do is to look for that information and you will avoid many scams.