Since Apple shut down their beautiful print products service, I've missed it a lot.
But when I last looked into it, I read about a service called
Motif.
It was indicated in a handful of places that
Motif are the service provider that Apple partnered with to produce the old -branded print products.
There is more information here:
https://www.imore.com/how-use-motif-create-perfect-photo-book
I've installed
Motif via the App Store and it integrates directly into Photos, appearing in the applicable sub-menus of the 'Create' menu. If you choose "Book" for example,
Motif presents its interface for selecting from options and then proceeding to the create mode.
However, I've not yet had a chance to compare their products with Apple's.