Zabbix - Track, record, alert and visualize performance and availability of IT resources
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
DataGrip - Tool for SQL and databases
Prometheus - An open-source systems monitoring and alerting toolkit.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.