Here is a list of core templates used in Neuhub, Hubzilla, and Streams. These templates are used for navigation and the basic structures throughout the website.
In both Hubzilla and in Streams, the default versions are located in /view/tpl, but you can override the core templates by putting a template with the same file name in your theme (or child theme).
Note: This list does not include templates used by widgets, which has its own list.
When creating your own versions of these templates, you can model those in the core.