Custom Post Type with Taxonomy Page Loop, How to sort and display all

I’m always having issues sorting, displaying, the right taxonomy term from a custom post type. So for now I have CPT of Clients. Taxonomy of Client (client categories), then terms such as Diagnostics, Devices, Theraputics, etc. Obviously I don’t want to make a taxonomy.php page for all of them (I have taxonomy-client.php now). So this code works to display the proper terms (categories). But I need to be able to sort by title and display all posts.

<?php $term = get_term_by( 'slug', get_query_var( 'term' ), get_query_var( 'taxonomy' ) ); ?>
<?php if (have_posts()) : ?><?php while (have_posts()) : the_post(); ?>
<h2><?php the_title();?></h2>
<div class="content"><?php the_content(); ?></div>
<?php endwhile; ?><?php endif; ?>

Please help!