Some machines you can get would be as said:
Whites MXT- (Easy hands on machine, basically plug and play good with Coins, Jewelry, and relics works good on wet sand and beaches. Designed by a famous metal detector designer.)
The Whites XLT- (This machine takes lots of programing and knowledge of metal detecting lots of tinkering and adjustments. Good at finding Coins, Jewelry, relics and more if programed right.)
The CZ-3D- ( This is a good machine designed to find older deeper coins )
X - Terra 70 - ( Don't know about this machine )
Personally I love my MXT and recommend that. Real easy and finds the goodies nice and easy too. You should be happy with any of the above machines.
Keep @ it and HH!!