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.
not all will survive, bitcoin and ethereum will certainly survive and other altcoins in the top 20 will survive and the rest will die. there will be lots of dead projects and dead coins, this is good for the market because the market will be more stable.