Best portrait lens for the leica m11 monochrom?

Here is what the site says about that.

From Leica M11 Monochrom: Leica M11 Monochrom: A rangefinder by Leica with a 60-megapixel full frame sensor, announced in 2023. Black and white only: the sensor has no colour filter. Specs - Maker: Leica - Mount: Leica M - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 60 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2023 - Type: rangefinder Focal lengths on it Full frame ...

From Portraits: Portraits: For portraits, the lens matters far more than the camera. A cheap body with a good portrait lens beats an expensive body with a kit zoom every time.

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