Ethereum
Arbitrum throws its hat into Celo’s migration to a layer 2 blockchain.

A notable fact about Arbitrum is that it is the largest Layer 2 based on the key metric of “Total Value Locked” or TVL, which represents deposits locked in a particular network’s decentralized finance protocol. According to the L2Beat website, this figure for the Arbitrum One network currently stands at $8.4 billion, almost double the $4.6 billion for the second-place OP mainnet.