Cams that I have used successfully on Dahua NVR's
Dahua, Hikvision, Axis, Gw Security, Lorex, GoSwift, Raysharp,
Uniview , and a few No Name Onivf cams that I cannot remember the names of. If they are newer and Onvif Compliant its a good chance they will work however It Is best to stick with Dahua as
@catcamstar says.