There are many USD stablecoins they can use: https://www.coingecko.com/en/categories/stablecoins https://www.coingecko.com/en/categories/stablecoins. The top tw

There are many USD stablecoins they can use: https://www.coingecko.com/en/categories/stablecoins https://www.coingecko.com/en/categories/stablecoins. The top two are the most liquid but are also centralized, many of the others are fully decentralized.