I think that only 10% coins/tokens that would be able to survive and will be worth investing in 2021.
There are currently 2400 tokens that are known and many unknown to anyone. By the end of the year 2020, at least 100-200 new tokens will be created. Every day in the world there are 5 new airdrops. I think it is not realistic to calculate. But I'm pretty sure new tokens are being created more than they are being deleted.
But we have to buy only good market capitalization coins. Don't invest money in shit coins.
It is not easy to choose which coin is right for us to invest in. but at least we have an overview of some of the new crypto projects that are also of great value, including through the products offered. if we already know product of the project then we dare to invest and we can try it