CPT name display on a category/archive page

Hi Tom and support team!

I'm trying (but failing) to display the CPT title in the entries on a category-slug.php page (much like a category link might appear at the bottom of a single post, or how the meta info displays).

Ideally I'd like to drop it in after the excerpt, but am returning errors when trying this using content.php - is this the correct place?

I've been using <?php post_type_archive_title(); ?> to try and call it in.

Hope I'm describing this well enough... it's just a visual method for identifying the CPT on the category page.

Thanks for any help you can give,

Mike