Change header for particular page - https://wordpress.org/plugins/bb-header-footer/

change-header-per-page.php

<?php

/**
 * Change the dynamic header for a particular page.
 * 
 * @param  String $header_id Page/Template ID of the header set from the options panel.
 * @return String            Page/Template ID of the header after manipulation.
 */
function bbhf_header_override( $header_id ) {

  // Check if the current page id is the page which we want to change the header for, here 1241 is the Id of the page for which I want to have a differennt header.
  if ( is_singular() && get_the_id() == '1241' ) {

    // return the ID of the template/page which you want to replace on this page. Here for page with ID 1241 I am overridinng the header with id 30.
    return '30';
  }
   
  // As a default return the $id unchanged.
  return $header_id;
}

add_filter( 'bhf_setting_bb_header_id', 'bbhf_header_override' );

The id of the page/template can be found from like this