Most reviews are split into size categories, so you get 23-25", then 27-28", then 30" and beyond. If you're doubting between 27" or smaller, you should know this:
there is only 1 4K screen smaller than 27". Despite the price, it seems to have a very good panel. So if you want 4K, it's either this and some DIY calibration (you said you're creative) or a 27" screen.
As for 27", I've used and really liked Dell, BenQ and LG. Usually, the more you pay, the better the panel and the more calibrated it comes out of the box. The Dell UltraSharp series is pretty good. You can get the U2720Q or the UP2720Q, where the "UP" version is "better". I personally wouldn't bother and save a pretty penny by getting just the U.
If you want a screen that's not 16:9, you can go either wider, or there is exactly 1 option that is taller (the
Huawei Mateview, which is 3:2).
Aside from display quality, you should also think about the stand (do you need to rotate it or adjust the height, or are you going to mount it with VESA) and whether you want it with USB-C (hub/dock integrated? power delivery - how many Watts?). And then there's built-in speakers, which I don't care about, but some do.