I assume your WP settings is
- New User Default Role = contributor
If yes, so this block of code shows all the contributor’s with account_status = approved;
$args = array(
'role' => 'contributor',
'meta_key' => 'account_status',
'meta_value' => 'approved'
);
$users = get_users($args);
foreach ($users as $user) {
echo '<pre>';
print_r( $user );
echo '</pre>';
}