Which Template Page Should I Use?

you could always make a custom wp_query and put it in a template-custom.php.

$the_query = new WP_Query( array(
    'post_type' => 'faqs',
    'tax_query' => array(
        array (
            'taxonomy' => 'audiences',
            'field' => 'slug',
            'terms' => 'merchants',
        )
    ),
) );

while ( $the_query->have_posts() ) :
    $the_query->the_post();
    // Show Posts ...
       the_title();
endwhile;

/* Restore original Post Data  */
wp_reset_postdata();