This look is mostly created with a combination of good light and post-processing.

From the examples, the key ingredients are:

• Golden-hour light: early morning or sunset gives warm color and naturally stronger contrast.
• Increased contrast: global contrast boosts make colors appear richer.
• Increased saturation: this makes the colors “pop,” but too much can look unnatural.
• Local contrast enhancement: often done with curves or an unsharp mask using a large radius, similar in effect to mild HDR tone-mapping.
• Extra sharpening: likely some unsharp mask sharpening; overdoing it can create bright/dark halos along edges.

So the answer is not just “luck,” but starting with good light and then pushing contrast, saturation, and local contrast in post. The sky may also be adjusted separately from the rest of the image.

A good approach is to shoot in strong natural light first, then edit carefully: add moderate contrast, a little saturation, and a subtle amount of local contrast/sharpening. It’s easy to overdo this style, so small adjustments usually look better than extreme ones.