Transition metal chalcogenides
As said by Oscar Lanzi, they are called &quot;ternary metal chalcogenides&quot;. However, the name depends on the type of metal present in the compound. From here:

Systems to be studied include the layered intercalates $\ce{AMX2}$ (A=alkali
metal; $\ce{X=S, Se, Te}$) which are potential ionic conductors suitable for
use in solid state batteries: Group 2 ternary chalcogenides of type
$\ce{AMX3}$ and $\ce{AM2X5}$ ($\ce{A=Mg, Ca, Sr, Ba}$ ; $\ce{X=S, Se, Te}$) - some of which are superconducting and ternary mixed transition metal chalcogenides $\ce{MM'X2}$ ($\ce{X=S, Se, Te}$) examples of which have a wide range of magnetic properties including colossal magneto resistance.

You'll find more information on chalogenides of formula $\ce{ABS3}$ in this paper:

The structural diversity of ABS3 compounds with d0 electronic
configuration for the B-cation, John A. Brehma, Joseph W. Bennett,
Michael Rutenberg Schoenberg, Ilya Grinberg, and Andrew M. Rappe, J.
Chem. Phys. 140, 224703 (2014); DOI: 10.1063/1.4879659 (PDF
link)

Also, metal chalcogenides of different composition has also been noted:

($\ce{AB2X4}$): Wold A., Dwight K. (1993) Ternary Transition Metal Chalcogenides AB2X4. In: Solid State Chemistry. Springer, Dordrecht. DOI: 10.1007/978-94-011-1476-9_12

Mixed transition-post transition metal chalogenides of form $\ce{ABS2}$ and $\ce{AB2S4}$

($\ce{CuInS2,AgInS2}$): Ternary Metal Chalcogenides: Into the Exciton
and Biexciton Dynamics, Tushar Debnath and Hirendra N. Ghosh,The Journal of Physical Chemistry Letters 2019 10 (20), 6227-6238, DOI: 10.1021/acs.jpclett.9b01596

($\ce{AgBiS2}$): Effect of different growth temperature on the formation of ternary metal chalcogenides AgBiS2, S.Sugarthia,G.Bakiyaraj, R.Abinayab, M.Navaneethana, J.Archanaa, M.Shimomurad, Materials Science in Semiconductor Processing
Volume 107, 1 March 2020, 104781, DOI: 10.1016/j.mssp.2019.104781

($\ce{ZnIn2S4}$): Ionothermal/hydrothermal synthesis of the ternary metal chalcogenide ZnIn2S4, Cuixia Li, Honghua Lia, Lijun Han, Chunshan Li, Suojiang Zhang, Materials Letters, Volume 65, Issues 15–16, August 2011, Pages 2537-2540, DOI: 10.1016/j.matlet.2011.05.052




Note: if the chalcogen is oxygen i.e $\ce{ABO3}$, then it is called Perovskite.