These were taken and processed on my iPhone 8 so a very simple workflow. I always make sure that I expose for the sky which can mean the foreground is a little dark, but that can mostly be fixed.

Processing wise changed the photo to black and white (you can just remove all saturation), boosted "Clarity" and "Dehaze" with a little Vignette to darken the corners. Shadows were lightened a little.

I used Adobe Lightroom but I imagine the settings are similar across many other apps.