I avoided black shirts for years because every one I owned went grey in the wash within about six wears, then I borrowed a proper one for a work thing and realised the fabric was doing something mine never had. It just sat there, flat and dark and dense, instead of looking like it had been through a dishwasher.
The fit is where most of these go wrong, and it's rarely about size so much as where the thing pulls. Button it up and sit down before you decide anything, because that's when the gap between the third and fourth button shows up and tells you the truth. Shoulders should sit at the edge of your shoulder, not an inch down your arm, and the collar needs room for one finger without choking you by lunchtime. Cheap black shirting tends to be thin enough that you can see a bra seam through it in certain light, which nobody warns you about until you're stood under an office strip light wondering why a colleague keeps looking at your shoulder. A denser weave sorts that out immediately, and it's usually the first thing that separates the decent ones from the bin ones.
If you've got none, start plain and a bit structured, nothing sheer, nothing with a shine to it that reads more disco than desk. A cotton or cotton blend with a bit of weight holds its shape through a day of sitting, reaching, taking a jacket on and off, and still looks the same at six as it did at eight. Skip anything described as "fluid" for your first one. Fluid is another word for clings to everything and creases if you breathe on it.
Once you've got it, it does more quiet lifting than almost anything else in a normal rotation. Under a grey or camel coat it looks deliberate rather than like you ran out of ideas. With jeans and loafers it's a Tuesday. Tucked into a skirt with the sleeves pushed up it stops looking like office wear entirely. It sits under jumpers in winter so only the collar shows, which is a trick that makes a jumper look more expensive than it is. The only real test is a long day, nine hours, a car journey, maybe a spill of coffee near the cuff, and seeing what still looks like a shirt at the end of it rather than a rag.
Get the fabric right and the fit sorted, and you'll reach for it more than you expect to.