Layer 2 Cryptos Gain Traction Amid Scaling Concerns

Layer 2 (L2) cryptocurrencies remain a crucial area of focus in the crypto space, particularly for Ethereum and Bitcoin users. These coins aim to scale their base chains by processing more activity at lower costs while maintaining connectivity.

The goal is not to replace the base chain but to enhance its functionality. Some L2 networks use optimistic rollups, ZK-rollups, or zkEVM designs, while others employ modular architectures or gaming-focused scaling solutions.

Mantle (MNT) made it to this list due to its large token, strong exchange access, and a significant DeFi liquidity push. As of mid-September 2026, Mantle had around $500M, $650M in stablecoins and approximately $1.5B in bridged TVL, both up from June.

Polygon Ecosystem Token (POL) also made the list due to its strong user footprint in crypto scaling. Recent tracker data showed daily active addresses in the mid-hundred-thousands and monthly stablecoin transfer volume in the tens of billions.