Exclude/Display Author blogs from Blog Index

/**
 * List blogs with specific user ids
 *
 * @author vapvarun
 * @link https://wbcomdesigns.com/
 * @param object $query data
 *
 */
function wbcom_display_author_blogs( $query ) {

    if( $query->is_main_query() && ! is_admin() && $query->is_home() ) {
        //replace array values with user id
        $query->set( 'author__in', array(1,26) );
    }
}
add_action( 'pre_get_posts', 'wbcom_display_author_blogs' );