Welcome to the forum,a bit more info would help,budget,interests and what lenses do you have,i still have my D70 and to be honest any current Nikon body/sensor will be an upgrade.
What do you like to shoot and how do you display your work(prints,web page, social media etc) and how much interest do you have in post processing of images.With that information we can recommend the best match. What lenses you have that you want the camera to be compatible with?