Aurora

See https://github.com/yugabyte/yugabyte-db which also reuses the query layer of PostgreSQL, like Aurora PostgreSQL

Interesting comment about internals - https://news.ycombinator.com/item?id=40545075

Pricey, see https://news.ycombinator.com/item?id=40539172

Guidance for Multi-Region Application Scaling Using Amazon Aurora - https://aws.amazon.com/solutions/guidance/multi-region-application-scaling-using-amazon-aurora/