QR Feedback - Marketing Ideas?

Hello hello!

I just launched my solo project: https://qrfeedback.app
it’s a simple way to collect customer feedback through a QR code, helping businesses improve.

I’m eager to get it in front of users and would love any advice on quick, low-cost marketing tactics that have worked for others here.
What strategies would you recommend to rapidly attract the right audience and start gathering feedback?

Any tips or insights would be incredibly appreciated. Thanks in advance!

Bonus: If you know anyone that runs small businesses such as restaurants, hotels, etc and you could show them it :)