Best telephoto lens for the leica cl?

Here is what the site says about that.

From Leica CL: Leica CL: A mirrorless camera by Leica with a 24-megapixel APS-C sensor, announced in 2017. A small APS-C body with a built-in viewfinder and dials; takes TL and SL lenses. Specs - Maker: Leica - Mount: L-Mount - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 24 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2017 - Type: mirrorless camera Focal lengths ...

From Sensor sizes: What it costs you: - Size, weight and price, especially of the lenses. A full-frame telephoto is much larger than its APS-C or Micro Four Thirds equivalent. - Less depth of field when you want more of it, for macro or landscape.

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