Leica T Typ 701 has a Leica TL lens mount and currently there are 77 native lenses available for this mount.
The latest released lenses that are compatible with the T Type 701 are the Sigma 50mm F1.2 DG DN Art, the Sigma 500mm f5.6 DG DN OS Sports and the Sigma 15mm f1.4 DG DN Art.
Leica T Typ 701 doesn't have a sensor based image stabilization system but
13 of these lenses already comes with optical image stabilization.
Since Leica T Typ 701 has a APS-C sensor, it has a focal length multiplier of 1.5x so you have to multiply lenses original focal length with this multiplier to find the Full Frame equivalent focal length of the lens when mounted on T Type 701.
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Leica T Typ 701 Lenses with Image Stabilization
Leica T Typ 701 Lenses with Weather Sealings