Historical Intraday (1 minute) NQ data

You could try FirstRate Data which has 1-minute bars for major US stocks and indices going back about ten years.
A few of the tickers also have 1-second historical bars, but not sure how many..

 

Another source https://www.dxfeed.com/historical-tick-data/ they have some demo data from the flash crash on the link for free. From $59.

 

if you are after a licensed data provider, Portara is a verified supplier and have free sample data for you to test with. The intraday is in 1-min format and tick is in 1-milisecond. here's the link to their NQ Futures page.

 

See if algoseek's free data samples would do: https://www.algoseek.com/data-drive.html