Best telephoto lens for the sony a6100?

Here is what the site says about that.

From Sony a6100: Sony a6100: A mirrorless camera by Sony with a 24.2-megapixel APS-C sensor, announced in 2019. The a6400's autofocus in a simpler, cheaper body. Specs - Maker: Sony - Mount: Sony E - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 24.2 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2019 - Type: mirrorless camera Focal lengths on it Lenses frame like 1.5 ...

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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