DBeaver - DBeaver - Universal Database Manager and SQL Client.
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.
DataGrip - Tool for SQL and databases
FriendlyData - Communicate with databases like a human
MySQL Workbench - MySQL Workbench is a unified visual tool for database architects, developers, and DBAs.
SpreadsheetDB - A database that you can query with spreadsheets