Alternative to WordPress' get_template_part function , which allows you to pass data to the template part. Requires PHP 7+ because of the coalescing operator. Info at https://permanenttourist.ch/2019/10/passing-data-to-wordpress-template-parts/

getTemplatePart.php

<?php

public function getTemplatePart(string $file_path, ...$arguments)
{
	$data = [];

	// Array containing possible paths to the template part
	$parts = (array) $file_path;

	if (is_array($arguments)) {
		// Find an array in $attributes and use it as $data in the
		// included template part
		foreach ($arguments as $attribute) {
			if (is_array($attribute)) {
				$data = $attribute;
				break;
			}
		}

		// If the first function attribute after $file_path is a string,
		// prepend the alternative (e.g. post type) name to the paths array
		// e.g. [partials/excerpt-customposttype, partials/excerpt]
		if (is_string($arguments[0] ?? null)) {
			array_unshift($parts, $file_path.'-'.$arguments[0]);
		}
	}

	// Make sure that each possible file path is suffixed with .php
	if (!empty($parts)) {
		foreach ($parts as &$file) {
			if (false === strpos($file, '.php')) {
				$file .= '.php';
			}
		}
		if (!empty($template = locate_template($parts))) {
			require(locate_template($parts));
		}
	}
}

usage.php

<?php

foreach($my_authors as $author){
	sht_theme()->getTemplatePart('partials/meta/author_card', [
		'author' => $author
	]);
}

// OR

foreach($my_authors as $author){
	sht_theme()->getTemplatePart('partials/meta/author_card', get_post_type(), [
		'author' => $author
	]);
}