First, you need to see that the image (or the scene) has the potential to become a great black and white photo.
I’ve used this photo as an example because it illustrates the two steps perfectly. First, you need to see that the image (or the scene) has the potential to become a great black and white photo. Second, you need to understand how to use Lightroom Classic’s tools (or the tools of the software you prefer to use) to turn a good color photo into a great black and white one.