dbForge SQL Complete - Try Intellisense functionality and Improved SQL Formatter in SQL Server Management Studio and Visual Studio using SQL Complete!
Flyway - Flyway is a database migration tool.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
gitSQL - Database source control for SQL Server, PostgreSQL
DataGrip - Tool for SQL and databases
Evolve (database migration) - Database migration tool for .NET and .NET Core. Inspired by Flyway.