SQL Diagnostic Manager - Predict database performance issues before they happen. SQL Diagnostic Manager for SQL helps you optimize your database performance both on-premises and in the cloud.
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.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
Visual Expert - An all-in-one Static Code Analysis + SAST tool for PowerBuilder, Oracle and SQL Server
SQL Sentry - SentryOne is the most capable, scalable software for data DevOps and database performance monitoring.