After retiring the Nikon 1 line, Nikon returned to mirrorless cameras in 2018 with a pair of identical bodies with different image sensors (Z6, Z7). At this time, only a few Nikon Z models are now out of production (new Z models can be found at this link):
Lenses for the Nikon Z cameras
Thom's Complete Z System Web Site has more information than sansmirror does on the Nikon Z cameras.