This is the 80mm fan I got for my Nokia trashcan that is ultra-quiet (3 speeds select & rubber feet) and just the right size... not sure if would be a good match for the Arcadyan or not. I seems to dish out enough airflow for the Nokia:

https://www.amazon.com/dp/B00G059G86

To run the fan off of the Nokia, I also bought a USB-C adapter to USB-A:

https://www.amazon.com/dp/B07BS8SRWH

Note: Mine is same as user swlen suggested, but I set the Nokia on top of my fan.