How to rearrange the sort buttons in a view
Sure there is a twig for the exposed sort form. But normally you rearrange form elements inside of a form by adjusting the weight property. If you want to move the button outside of the form in another place of the view you need some tricks, look here https://stackoverflow.com/questions/7020659/submit-form-using-a-button-outside-the-form-tag/23456905

If you want to rearrange the view in general, like moving the complete exposed section to another place, you can do this in views-view.html.twig:

{{ title_prefix }}
  {{ title }}
  {{ title_suffix }}

  {% if header %}
    &lt;header&gt;
      {{ header }}
    &lt;/header&gt;
  {% endif %}

  {{ exposed }}
  {{ attachment_before }}

  {{ rows }}
  {{ empty }}
  {{ pager }}

  {{ attachment_after }}
  {{ more }}

  {% if footer %}
    &lt;footer&gt;
      {{ footer }}
    &lt;/footer&gt;
  {% endif %}

  {{ feed_icons }}