A:Answer I believe any speakers should work relatively speaking. To be safe, I'd make sure they have the capability of a 3.5MM Headphone Jack just in case any Bluetooth function of the speaker isn't compatible with your needs.
I personally purchased -"SUDOTACK Gaming Computer Speakers, 10W USB-Powered Stereo Multimedia Speakers, with RGB Touch Control Backlit, 5 LED Light Modes, 3.5MM Headphone Jack, for Desktop PC Laptop Monitor Projectors TVs".
They work very well for me, and we're only $33 or so on Amazon. My girlfriend has the same monitor though, and her Headphone Jack in the back of the monitor wasn't responding for some reason. I think her speakers were possibly outdated though.