Hi @elmundo
It largely depends on your use-case as to which database will be more performant, generally I would say PostgreSQL would be the better choice for single instance database nodes, if you are scaling the database then most like MariaDB + Galera cluster.
We don’t have native queries for geospatial on any database, but you can directly hook into the connectors (Mongoose and Bookshelf) to build your own spatial and geographic queries.
Since Strapi is heavily relational based, on SQL database you get the benefit of relational joins to increase performance.