IMO a subject either lends itself to B&W or it doesn't!
If the scene has a moody look as a result of the weather with dramatic cloud formation or perhaps some stronger variations in light across the whole (I.e. shadows from clouds rapidly changing the lighting in a mountain area?)
Or if there is some contextual difference such a river with an old mill building could look better in B&W rather than colour.
IMO just 'jishing' up an image will not make a colour to B&W image better.........it either has the potential or not to start with!
PS edit- you question got me thinking about some USA pictures I recalled in B&W but just could not recall the tog and still can't
However, here is one aspect page I found.....not all of those shown IMO work 100% but they are all worth seeing as examples to perhaps 'get you thinking'
https://digital-photography-school.com/27-black-and-white-landscape-images/