If you are still confused about which coins are the best, Here is the list of my recommendation:
1. BTC
2. BNB
3. ETH
4. BCH
4 of them are very very great, stable, and have a high possibility that can keep increasing again for a quite long time, for example
BNB itself since 2017 it already raised to 420.000% till today.
I choose from number 1 to 3 as the investment coin, especially bitcoin as we see bitcoin price now increase so high, out of our imagination before. ETH and BNB is also a good coin to be used as the investment. Both coins also increase like bitcoin. I wonder how high ethereum and BNB will increase later, but I am sure that will be higher than the price now. For number 4 (BCH), I am not sure if that coin can back to the highest price and make the new ATH later. But everything can happen in the crypto market, and I hope we can find the coin we want.