I'm in the market for a new, $400ish, 4k 27" monitor to sit beside my 5k Ultrafine. The market pretty saturated - LG has too many with subtle variations to keep track of! Does anyone have recommendations for one that has great color reproduction and as a bonus, is factory calibrated? I do web work, not print or photo so I'm not looking for, or can afford, a high-end model.