Leica SL3-S has a Leica L lens mount and currently there are 146 native lenses available for this mount.
The latest released lenses that are compatible with the SL3-S are the SG-image AF 35mm f2.2, the 7Artisans 135mm f1.8 L and the TTArtisan 50mm f1.8 NEO L.
SL3-S also has a sensor based image stabilization system that is up to 5.0-stops effective which means that all of these lenses will be stabilized when used on the SL3-S.
Since Leica SL3-S has a Full frame sensor, it has a focal length multiplier of 1× so lenses will provide their original focal length on SL3-S.
You may also also be interested in these:
Leica SL3-S Lenses with Image Stabilization
Leica SL3-S Lenses with Weather Sealings