InfluxData - Scalable datastore for metrics, events, and real-time analytics.
Microsoft SQL - Microsoft SQL is a best in class relational database management software that facilitates the database server to provide you a primary function to store and retrieve data.
TimescaleDB - TimescaleDB is a time-series SQL database providing fast analytics, scalability, with automated data management on a proven storage engine.
MySQL - The world's most popular open source database
VictoriaMetrics - Cost-effective database for huge amounts of time series data
PostgreSQL - PostgreSQL is a powerful, open source object-relational database system.