Gnosis
Gnosis Chain (formerly xDai) is an EVM sidechain that uses xDAI (a bridged DAI stablecoin) as its native gas token, so transaction fees stay stable and predictable at fractions of a cent. It was originally designed for micro-payment and humanitarian use cases, and remains a preferred chain for DAOs and public goods funding. Balancer and Honeyswap lead its DEX ecosystem.