Mantle.

Mantle is an L2 network that separates data availability, consensus, and execution to achieve high performance while maintaining Ethereum's security. It features a unique modular design and is governed by the Mantle DAO to drive ecosystem growth through treasury-funded initiatives.

Strong treasury management and integration with the Ethereum ecosystem could position Mantle as a dominant L2 competitor.

Intense competition from other major rollups like Arbitrum and Optimism creates pressure to maintain developer and user retention.