Well, I'm also using a 1440p display so I don't have personal experience with any 4K displays. Also, most of the folks on this forum are gamers. So if you are doing content creation your needs will be different than ours.
Ideally you would want to go to a store that sells displays and see one in person but such stores are rare these days. So I would recommend browsing the online shops and if you find one that you like I would look for professional reviews of that display. Since you are doing content creation you want a review that verifies excellent color space coverage. You'll probably want an IPS panel for best color accuracy.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…