. I have been at the metal detecting for many years, although not in an avid manner. Almost any of the top brands will work quite well.
Whites, Minelab, Bounty Hunter, Technetics, Garrett, Fisher, almost any place is a good place to start.
One bit of advice I would offer..don't go for too many bells and whistles. Last year I purchased a new Technetics Liberator.
I am not a big "techy geek"..so I spend lots of my field time, trying to adjust all the bells and whistles.
I noticed many of the folks are both here and in Europe, are using Garretts..but of course the guys who "live for detecting", Have upscale and more complicated models.
Be sure to get a pinpointer with it, which will save you a lot of extra digging . Research before you invest.
I would suggest something like a Garrett 250 to start..spend a bit over $200 and get started. You may like it ..OK use the $200 machine to start..get the hang of it..then go for the $800 or $1,000.
On the other hand, if you find you're not "on fire", hen you can either keep the machine, or sell it and get at least half of your money back.
Tesoro makes some outstanding detectors, if you can go by sound and don't need a display. Tesoro's warrantee is especially good !
I expect you should be getting much advice by more avid detectorists..just do your research before investing.