There is definitely something better: your two hands. And a scale, to get you started.
Pinch off a chunk of ground meat, weigh it, and adjust the amount until you can pretty consistently grab the right amount. (Trust me, this is really easy to learn.)
Then for shaping, pat it gently into the patty shape you like -- round, square, flat and wide, thick and narrow -- just don't press the meat together too hard. That's what's wrong with presses: they compact the meat too much and you get tough burgers that are hard to cook properly.
Even if you have to shape hundreds of burgers, this will actually go faster than using a press, and give you better burgers.