While it isn't branded as an Apple display, the LG UltraFine 4K Display is quite Apple-like, featuring a minimalist design, high-quality ultra high-resolution screen, and dead-simple plug-and-play connectivity. It's a fantastic choice and a gorgeous display if you have a USB-C equipped MacBook, with a few caveats: it lessens the appeal of the MacBook Pro's Touch Bar and Touch ID, and it doesn't utilize Thunderbolt 3.
LG UltraFine 24MD4KL-B review
4k lg for Sale in London, Computer Monitors
LG's UltraFine 5K Display Will Be Returning as Alternative to
LG 27UD88 Review: A Well-Rounded Ultra HD Display With USB-C
Review: LG 23.7-inch Thunderbolt 3 4K UltraFine Display excels
LG Monitor USB Type-C Cable - EAD63932606
Review: Is the Apple Studio Display Just an Overpriced Monitor?
Apple Studio Display review: An excellent monitor at a steep price
How to use the new iPad Pro with an external monitor - CNET
Get Comfortable with the NEW LG 32 Ergo 4K HDR USB-C Display
Review: LG UltraFine Ergo 32-inch is a USB-C display that moves
Apple's Studio Display fills an obvious gap in the monitor market
Studio Display review: An Apple monitor where “5K” doesn't
Review: 27-inch Samsung ViewFinity S9 – Six Colors
LG UltraFine 4K Display 24MD4KL Review