I’ve always like the base 370z 18" wheels.
They also happen to fit the Juke great. A few things would change. The rear rims would be up front with 255/40r18(370z size is 245/45r18) on the 18x9, & the fronts would be in the rear with 225/45r18 (370z size is 225/50r18) 18x8. The smaller tire is the oem 18" juke tire spec, the larger 255/40r18 is the same diameter as the smaller one. Going from a 8.5" wide tire to a 10" tire (more sticky tire too) up front should help with the understeer. It’s a little over kill, but that’s the story of my life.