What is the best URL for promotion?

Question

Search Engine Optimization

Need information to promote the site.
About a niche: a factory manufacturer - a collection (i.e. this is a group of goods) - a product.
The user is looking for a product next. typical requests:
1. Drive into the search. the line "Name of a specific Factory" - 2-7 thousand impressions. Example factory "atlas concorde" - 5700 impressions
2. Drive into the search. the line "Name of a specific Factory and a specific collection" - 200-800 impressions. Example factory "atlas concorde", collection "marvel" and collection "brilliant". atlas concorde brilliant - 280 hits or atlas concorde marvel - 840 hits
3. Type in search. string "Name of a specific product" - 5-80 queries
Example - atlas concorde marvel biege (biege - product name) - 30 impressions
1 question.
a)
domain.ru/catalog/factory/collection/product
b)
domain.ru/catalog/factories/factory_name (there will be 400 factories in total) domain.ru/catalog/collections/collection_name
(there will be 5000 collections in total) / products / product_name
(only a couple of ten thousand products will be)
c)
Looks like option "b"
2 question. And they told me (well, you understand, everyone says differently) that it’s better for search promotion when there are different catalogs for goods, collections and factories (because it’s on these names that promotion takes place, brand promotion is what I need ), because The search engine better indexes (or whatever it does) pages that are not deep in the catalog, compared to the first link - when the product is 2-3 levels from the catalog.
What do you think? How to do it better?

Answer 1

SUMMARY:
I decided that the trail is suitable for SEO. url type:
option B
Domain.ru/catalog/factory_name Domain.ru/catalog/factory_name_collection_name domain.ru/catalog/factory_name_collection_name_product_name
because
:
nesting
level is not deep, resp. faster promotion
factory name, collection name and product name are keywords and user requests that match each other by 80-90%

Answer 2

The final product must be at the second level, and without reference to any factories.
Ideal - when all your content is on the second level, example
/factory/content_by_this_factory
/product/product_name

Answer 3

Correct: a)
BUT! You can make (add) all the urls from "b)" as canonical.... (linking to the same pages) - it will be optimal.

Answer 4

Option A is the clearest!

Answer 5

Shallow in the catalog, compared to the first link - when the product is 2-3 levels from the catalog.

Nesting level
It's not the type of URL that matters, but how many clicks it takes to get the user to the right page starting from the main one.
Example: https://icons8.com/ Previously, we provided all links for search bots only through the sitemap, and on the main page there was only a search form. But then all the pages were overgrown with links in the top menu, in the text and in the footer in order to reduce the level of nesting of links for the search engine and increase connectivity.
Judging by the click maps, these links in the menu and footer are rarely clicked, that is, it is impossible to hope that the user will follow them. You need to figure out how users will get to the same pages in other ways. But the links will still remain there, for SEO.

Answer 6

Why is the level /directory/ in this scheme?