I think nickel sulphide has a good conductivity. Indeed this binary behaves like a metal.

MoS2 looks good for electronics fabrication according to:

https://en.wikipedia.org/wiki/Transition_metal_dichalcogenide_monolayers

Dear Lokesh,

Selenides should have the better conductivity due to the narrower electronic band gap. As a rule of the thumb the band gap decreases with increasing polarizibility of the anions. As an example we can consider the Cd chalcogenides:

CdS 2.42 eV yellow body colour

CdSe 1.74 eV red body colour

CdTe 1.56 eV black body colour

However, this only concerns the intrinsic conductivity, while p- or n-type dopants can enhance the conductivity tremendously. Many TM chalcogenides can be made by precipitation from solution, as e.g. ZnS, CdS, HgS by the addition of S2- anions.

All the best,

Thomas