How to find Android phone running 64-bit operating system for software testing purposes?

While many phones have 64-bit ARM processors, they all seem to be running Android 32-bit operating systems. Are any phones running 64-bit Android?

After testing on a 64-bit Android emulator, I now need a real Android device running a 64-bit operating system to test Bluetooth 4.0 classic communications.

My app uses native code and JNI. It is not pure java.

Background: Starting August 1, 2019 Google requires all apps published on Google Play to support Android 64-bit.

• https://developer.android.com/distribute/best-practices/develop/64-bit

Starting August 1, 2019, your apps published on Google Play will need to support 64-bit architectures

I cannot find a way to search for and locate Android devices running 64-bit Android.