https://www.wpbeginner.com/plugins/how-to-display-most-popular-tags-in-wordpress/

function wpb_tag_cloud() {

$tags = get_tags();

$args = array(

    'smallest'                  => 10,

    'largest'                   => 22,

    'unit'                      => 'px',

    'number'                    => 10, 

    'format'                    => 'flat',

    'separator'                 => " ",

    'orderby'                   => 'count',

    'order'                     => 'DESC',

    'show_count'                => 1,

    'echo'                      => false

);

 

$tag_string = wp_generate_tag_cloud( $tags, $args );

 

return $tag_string;

 

}

// Add a shortcode so that we can use it in widgets, posts, and pages

add_shortcode('wpb_popular_tags', 'wpb_tag_cloud');

 

// Enable shortcode execution in text widget

add_filter ('widget_text', 'do_shortcode');













<?php do_shortcode('[wpb_popular_tags]'); ?>