I think that 95% of crypto coins and tokens won't survive and the reason is that a crypto coin in order to survive and get value it has to be accepted as a way of payment for purchase goods or services.
Very few coins will manage to do it at the end of the day and of course these coins will get enormous value.
The only thing you have to do is to find out which coins will enter the market of real currencies.
It will always be interesting to discuss the possibility that crypto will be the currency. And speculation like this that I think continues to maintain the enthusiasm of the community in this industry. But it will be very difficult to do, although some altcoins do aim to be a substitute for future currencies.