There is every likelihood in our galaxy. But (luckily) there is no one in our vicinity, it appears. Cygnus X-1, the earliest to be discovered is BH is the nearest at a distance 6500 Light Years from the Solar system.
And of course, the SMBH (Sag A*) at our Galaxy's core is a well-known BH at about 26000 Light Years distance.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.