Render a region e.g page.sidebar_first in views-view.html.twig
Not the region itself, but you can render the blocks with Twig Tweak, so simply add the blocks that are in that region to your template file.


  Twig Tweak module provides a Twig extension with some useful functions
  and filters that can improve development experience.

{# The block with this ID should be configured on "admin/structure/block" page. #}
  &lt;dt&gt;Block:&lt;/dt&gt;
  &lt;dd&gt;{{ drupal_block('bartik_powered') }}&lt;/dd&gt;