I want to cut the black parts of this image but not manually since I have this issue a lot of times. Is there a way to do this like with an iPhone? See: https://www.reddit.com/r/iOSBeta/comments/by8wzd/feature_snapping_to_borders_when_cropping/?rdt=42907

Photoshop, GIMP, Paint, Snipping tool, don't care really what software to do this with but the more standard the better.