Off topic but curious, who makes good metal detectors today? I haven't used one since I was a small kid. But I might look at one. I just don't even know who makes good ones these days.
Best in higher end might be Nokta[1] and its sister company Makro[2].
Anything from any of those three companies will be good and high value.
[0]http://www.tesoro.com/product/detectors/compadre/index.html
https://www.whiteselectronics.com/product-category/metal-det...