What are you wanting to use it for? Water? Gold? Relics?
Garrett AT Pro is a excellent all around detector.
My first choice would be a White's Metal Detector, but they went out of business. I sold mine that would tell you what it is, gold, etc coin, if it's a 25 cents., 10 cents, etc.
https://www.kellycodetectors.com/catalogsearch/result?q=Garrett+AT+Pro+
Field Test: Garrett AT Pro Metal Detector Review - Kellyco Metal Detectors