How loud would they be with headphones, i can bear the noise as i had the loudest hard drive on my old computer and i didnt mind it, should i go for a 2-4tb hdd?
Ah right, so by my conclusion the HDD noise is only an issue if you have everything quiet, say you go to bed and leave the gaming pc on right next to you, then you would hear the noice it makes, I for one use desktop speakers when I play games and the HDD, witch aren't even in use when gaming because I only store games's installations on there are not even in use so I can't hear my drives above my game audio, sitting at the desktop with no ambient sound then you hear them quite often, You do get used to it though, So did I.
If you got earphones on most of the time won't be an issue, remember HDD can give lots of space for little to no money, and they do copy alot slower, So if your going to be copying alot of stuff onto and of off them you might want to move towards SSD' or NVMe's rather.
The more space you have the better, because space won't be an issue again save you buy proper parts from a reputable brand, then in the future you can spend money on performance related upgrades and remain with the same storage hardware.