DBeaver - DBeaver - Universal Database Manager and SQL Client.
Sql Server Profiler - SQL Server Profiler shows how SQL Server resolves queries internally.
DataGrip - Tool for SQL and databases
ClearTrace - ClearTrace analyzes sqlserver trace files to show you which queries are consuming the most...
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.