quick tutorial for beginner

Easiest way is create in your template files like:
archive-xxx.php
single-xxx.php
where xxx its name of your custom posts(CPT-Onomies).

In archive you may put invocation of other template code and in content:

<?php

global $cpt_onomy;
$terms = get_terms( 'xxx' );
if ( !empty( $terms ) ) {
   echo '<ul>';
   foreach ( $terms as $term ) {
      echo '<li><a href="' . $cpt_onomy->get_term_link( $term, $term->taxonomy ) . '">' . $term->name . '</a></li>';
   }
   echo '</ul>';
}

?>

In single, you dont need any changes..
Read documentation for more informations: https://wpdreamer.com/plugins/cpt-onomies/documentation/