indeed there are many alternative coins that have the potential to grow and develop, but to take the position of bitcoin is not possible alternative coins will always be under bitcoin, bitcoin as a benchmark price of each alternative coin they follow the bitcoin price movement to determine their price
True, there are many altcoins that I think have good potential and can become very valuable in the future but I do not see any coin surpassing bitcoin in fact I really think that a new technology will need to be created that is not a cryptocurrency in order to replace it because even if bitcoin still has some details to fix, it is still by far the best cryptocurrency and it does not seem like it can be surpassed.