At this point, my first choice would be https://www.cockroachlabs.com/ (CockroachDB SaaS), which can allow for distributed instances... if your concern is more localized reads. Most cloud databases have tradeoffs. CockroachDB's advantages are pretty good horizontal scaling and mostly compatible to PostgreSQL from the wire protocol, datatypes and most basic queries.

The down sides, is it does help to at least understand horizontal database scaling, sharding, etc. so that you can use techniques that will avoid the worst bottlenecks (namely sequential number generation and joins).

Not sure what this provider offers and there are definitely other solutions from other cloud providers and service (Mongo, and others) or self-hosting a multi-region db with ScyllaDB/Cassandra even.