What crypto is replacing Bitcoin?

I'm curious, what cryptocurrency is currently emerging as a potential replacement for Bitcoin in the digital asset space? With Bitcoin's popularity and market dominance, it's fascinating to consider which altcoins might be gaining traction and challenging its status quo. Could it be Ethereum with its smart contract capabilities, or perhaps Solana for its scalability and speed? Or could it be a lesser-known coin with unique features and innovative technology? I'm eager to hear your thoughts on the matter.