Custom views twig template I am trying to create a new twig template that defines different types of views templates - or some sort of option based format.

Example 1:

Generic view blocks: block--views-block.html.twig

Example 2: 

News Block specific views with no container: block--views-block--news-elements-block-1.html.twig

Example 3:

List Block specific views with no container: block--views-block--list-elements-block-1.html.twig

What i want to achieve: - if i can present an option on the block, that would also work.

Views block with no container: block--views--no-container--block.html.twig

So far:

function THEME_theme_suggestions_alter(array &amp;$suggestions, array $variables) {

  // dpm($variables);

  // $content = $variables['elements']['content'];
  // if (isset($content['#block_content']) &amp;&amp; $content['#block_content'] instanceof \Drupal\block_content\BlockContentInterface) {
  //   $suggestions[] = 'block__' . $content['#block_content']-&gt;bundle();
  // }
}
For my circumstance i have adopted to use the block_alter hook to define the new suggestion for the template. Since homepage only contains the unique views template and the others wouldn't.

function THEME_theme_suggestions_block_alter(&amp;$suggestions, $variables) {
  $path_check = \Drupal::service('path.matcher');

  if (in_array("block__views", $suggestions) &amp;&amp; $path_check-&gt;isFrontPage() == FALSE ) {
    $suggestions[] = 'block__views__blah__custom';
  }

}