It's just my way of working, but I tend to export a "clean" image from my raw converter which has few edits and any NR and sharpening is turned off, and then I do everything else in Photoshop.
This way, I can make sure the order of things goes my way, which is very roughly: NR -> retouch -> overall image enhancement (contrast/color) -> detail enhancement -> effects - > sharpening, if any.
Generally, the point is not to aggravate any artifacts that might pop up as a result of heavy image editing, so you want to apply NR first and fix any small details before applying everything else, which may make it harder or impractical to fix afterward once you already have a bunch of layers.
Cropping is sometimes the first thing I do, sometimes I crop while editing, and sometimes it's the last step. It's often an aesthetic choice, and not a technical one, so there is no right way to go about it.