Server settings/solution globally for the best latency

Hey, we have a backend coded in laravel currently hosted on EU server. On this machine, there is also a MariaDB database. Sever is optimized, same goes to DB, we reach in EU very small latency, as it is goal. Unfortunately, outside EU, we reach much higher, which makes sense. We need our backend with database to be available globally with small latency. Load balancing servers is not an issue, the biggest issue is the database, since it has to be available in every region with super small latency for reading/writing operation. We are looking for somebody who can design or recommend us the possible solution.