It would be best to determine how best to organize your site by looking at what experts have done.
In making your site hierarchy, keep it very simple and straight to the point. Make a rule to allow up to three clicks from the home page to the target page.
In defining your primary categories, you must first consider the various types of information you want to put on your website. And these should be based on valuable information for your users.
subcategories
Aside from your principal or primary categories, it would be best to consider the subcategories that can appear under each main category.
These internal links are vital SEO tools that help Google understand the connections and relationships between your various pages. It also allows Google to index your website efficiently.