Thanks so much for the help! I am getting close but one last question. With this snippet I am able to print the assigned users and display the fields. The only issue is for displaying it only shows one of the user biographies despite the print_r showing the two.
<?php
$users = get_field('guests2');
echo '<pre>'; print_r($users); echo '</pre>'; // Prints out assigned user data
if ($users): ?>
<?php foreach ($users as $user): ?>
<?php setup_postdata($user);
$userID = $user['ID'];
$profile_image = get_field('profile_image', 'user_'. $userID);
$biography = get_field('biography', 'user_'. $userID);
?>
<?php echo $biography; ?> // Only displays first user data rather than all
<?php endforeach; ?>
<?php wp_reset_postdata(); ?>
<?php endif; ?>
