I hardly doubt that any other altcoin is able to replace Ethereum on the top of altcoins. There are some candidates like Ripple, EOS, BCH, LTC, and they are all great coins to have in your portfolio. But if they want to compete with such giants of crypto industry, they need to take more action and do more marketing.
You really listed in the best representatives of the cryptocurrency market, which, despite the current situation, still shows good results. If the development trend of these projects continues, we will indeed see very significant coins in the cryptocurrency market. But I also want to note Stellar, who has the same prospects in the future and today also shows good results.