Cook's Illustrated recommends the Wilton Comfort Grip Cookie Press 2104-4011, see inside for info:
I hope this helps, and welcome!
From Cook's Illustrated:
WE TESTED SIX COOKIE PRESSES FOR CONSISTENCY (ABILITY TO PRODUCE COOKIES OF UNIFORM SIZE),
comfort, and efficiency. The presses are listed in order of preference. See www.americastestkitchen.com for up-to-date prices and mailorder
sources for top-rated products.
RECOMMENDED
Wilton Comfort Grip Cookie Press 2104-4011 (Trigger)
$12.99
This press was quick, efficient, and easy to use. Also, the least expensive of the bunch.
But it can only produce a limited number of shapes.
RECOMMENDED WITH RESERVATIONS
Williams-Sonoma Cookie Press (Trigger)
$24
The trigger action on this press was slightly stiff and the handle less comfortable than
other trigger models. Cookies appeared slightly bloated, without crisp definition.
RECOMMENDED WITH RESERVATIONS
Wilton Cookie Max Cookie Press (Pump action)
$14.99
Testers found this pump action press to be awkward to use, in part because it required
two hands.
RECOMMENDED WITH RESERVATIONS
Kuhn Rikon Clear Barrel Cookie Press and Decorating Set (Trigger)
$15.99
This press had the stiffest, most slippery trigger of all the trigger models, and cookies
were bloated in some shapes.
NOT RECOMMENDED
Mirro Cookie Pastry Set (Twist action plunger)
$21.95
Testers found the twist action plunger on this model especially awkward to use,
particularly when hands become slippery or sticky from the buttery dough.
NOT RECOMMENDED
Salton Electric Cookie Press (Electric)
$24.99
The power button on this electric model was overly sensitive. A fraction of a second too
little or too long on the button and cookies came out misshapen and mis-sized.