I have "a thing" about black cats, too. I think they are just beautiful. And of course because the color is dominant, there are so many. The shelter is always teaming with them.
I always marvel at horses - how in a huge pasture they will be right on top of each other. But horses are herd animals, and, well, they like each other. A lot of people don't think cats are so chummy. But we know differently.
This morning my two boys, who are very competitive with each other, and barely tolerate each other much of the time, were on the same half of the couch together.
Here's a photo of that:

That's Lily up top (favorite morning spot) and Harlow and Claude on the couch. The harmony between them didn't last long, but it was nice while it lasted.
Robin