I suspect that you rook the photo with the intention of being an extreme wide angle panorama picture with distorted lines and no obvious focal point. So, why do you feel the need to crop it to be anything other than the panorama? If you really...
Agree with all of above, Lightroom (photoshop & probably other software) have all the standard composition overlays as guides, see Development/Tools/Crop Guide Overlays, so its easy to step through them and find the one that “rings”. Then...
I was puzzled by the various distortions in the image and had to look a a map to see what was looking ‘wrong’. The reservoir dam is distorted into a curve and the viaduct, which is a curve, has been straightened. Other than that, rule of thirds...