There are hundreds of altcoins claiming that they can compete with ethereum, but so far no coins have been able to do that.
I think they are just trying to rely on ethereum's reputation to be able to advertise their products.
However, I really hope to have a currency that can compete with ethereum, the competition will make the market grow.
so far there are no competitors that are so strict with Ethereum, but we have to realize binance, (BNB) through its own block network, binance shows their existence so far with the network protocol they made.
so there are many possibilities that newcomers will become ETH's tough competitors, including Thundercore even though they still use ETH's erc20 platform.