SushiSwap has launched stablecoin pools on Polygon, Optimism, Metis, and Kava

ChainCatcher message, the stablecoin liquidity pool launched by SushiSwap's AMM production framework Trident is now live on Polygon, Optimism, Metis, and Kava, allowing users to directly trade stablecoins and directly related tokens (such as WBTC, renBTC) with low slippage.

Trident is a production framework for building and deploying AMMs, on which any other AMM can be built and collaborate. Other AMMs can be integrated into Trident, and existing frameworks can be used to create and add dynamic liquidity types without the need to create and deploy a new framework from scratch. (Source link)