https://codecanyon.net/item/yaymail-woocommerce-email-customizer/33219267

When it comes to sending transactional emails, WooCommerce offers pretty standard and generic templates. They do the job fine but are too rigid for your brand recognition. In case you’re not familiar with it, YayMail is an email builder plugin, and as the “builder” part implies, you can drag and drop blocks to create entirely new email templates. While other email customizer plugins only allow you to tweak the pre-built templates, YayMail helps build awesome layouts and media content.