I take as little as possible.
For simple editorial work and musicians I use a pair of D5100s one with 35/1.8 and the 18-55 kit zoom.
For other needs I use a pair of D7100s with 20/1.8, 50/1.4, 85/1.8, 180/2.8, 18-140, and I carry a cheap Sigma 55-300?
for emergency reach just in case. I also still use my 400mm Nikkor ED-IF f3.5 when needed.
Lots of cards and a few flashes.