Where to find video driver?

Hi all, new here. I am very new to Linux and I recently installed an ubuntu based OS called Zorin OS9 core 64 bit.

So I tried to go ahead and use their little app center to install the driver for my Nvidia GTX 970. I am having major problems even booting the OS without it. Its damn near completely broken without the video driver, for some strange reason. Problem is, they don't really make it very easy to understand what the different Nvidia drivers actually are. I searched "nvidia" in the search bar of the Synaptic package manager, and a list of (packages?) showed up. But none of them are very clear on if they are a GTX 970 driver for Linux. It all reads more like is some kind of driver editor, or weird Nvidia server setup. None of it simply says "Latest Nvidia driver for Linux". Its very difficult for me to determine which one to actually install.

Can anyone point out exactly what I need to look for, word for word, in the synaptic package manager? Or in the software center? I'm not even sure what application to search in. Thanks!