>>3846511hey bro concert photog here
or uh former concert photog :(
anyways I just picked up a nikon d780 and the dynamic range is great, alot of info in the shadows so for shooting concerts, exposing for highlights and lifting in post will get good results
what's your budget? depending on how close you are to the stage a full frame camera plus an f2.8 zoom, either a 24-70 or 70-200 would be great, or to save money a 50mm or 85mm prime maybe?
However, shooting concerts is tough and it kicked my ass in the beginning so unless you're willing to put alot of time into learning photography and getting to know your gear I'm sure you could find someone local to do it for a reasonable price
>pic related is a nikon d500