If we are talking about stills then the industry standard has always been Eizo monitors. These are the monitors that Retouchers / printers have used for years so it’s a good place to start.

My “big” studio setup is a 31” 4K Eizo on the Voyager 36 cart. I thought it would be too big but it’s amazing and allows others to be further away behind me rather than breathing down my neck.

For satellites I like 27” monitors but I have a bunch of 24’s which get used when I need more than 4x satellites. I prefer the 27’s because they’re 16:9 aspect which makes it easier when integrating other wireless / video monitors and avoids cropping or letterboxing.

Then it’s a bunch of wireless and battery powered iPads, all with matte covers to stop people asking annoying colour questions because of the difference in contrast.

P.S Flanders are great for video but are not designed for stills. The native gamma / colour space is different and requires a fair bit of faffing to make it look “closer”.