ethereum biggest contender is binance coin.. bnb has a big potential as well as those in the top 10 list.. but the thing about this ethereum even though there are a lot of coins out there it seems that eth is so popular..
How exactly you think they are in competition with each other? BNB was build to be a DEX while ETH is doing so much more then that.
Considering the growth of Binance in the past years, this can still be a potential contender on a top 2 position despite of their differences. ETH is still better than any smart contracts as of today and the hype to beat ETH was gone, this is why ETH is still on top. Well, no matter what kind of technology that you have in this market as long as there is growth and demand, you can be the contender and there’s a chance for that coin/token to be on top of altcoins, who knows!