FriendlyData - Communicate with databases like a human
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
Magic Spreadsheet - Human workforce and AI plugged into your Google Spreadsheets
iotlist - Discover the internet of things
Sheetsu - Turn Google Spreadsheet into API