Should there be next?? I mean Ethereum is very unique in its own way I guess..
ETH is in a very nice place right now being the top 2 cryptocurrency. Its volume sure is still looking pretty good considering how high the gas fees are.
Ethereum is the king of Altcoin at this time, so nothing can beat it from the past until now, except Bitcoin, but for the future I also don't know if it will lose to others because of the problem of transaction fees which are still very expensive in at this time, because if on other platforms the costs are much cheaper and the support has started a lot too, then everyone will run to that platform to avoid expensive fees on Ethereum.