Start with https://map.blitzortung.org/ https://map.blitzortung.org/ . Zoom in to your area. Pull down the hamburger menu at the top right. Select the "Detecto

Start with https://map.blitzortung.org/ https://map.blitzortung.org/ . Zoom in to your area. Pull down the hamburger menu at the top right. Select the "Detectors" check box and slide the slider to the right. I found someone operating a detector a few miles from my house.