Subdomains for each city of the Internet hypermarket?

Question

Search Engine Optimization

there are about 350,000 products, we plan to work in different cities,
make gorod.domen.ru sites with the same assortment but different titles and physical addresses, or how to optimize SEO correctly and get traffic?

Answer 1

domen.com/ru/gorod/catalog/id
domen.com/ru/gorod/contacts/
domen.com/ru/about/ - (this link is common to everyone and does not require a city)
Also, if there is no part of the link (where a city is required!) indicating the city:
should be determined automatically based on the collected data + by IP (something of an automatic knowledge base) or a window with a city selection is offered.
After the value is determined automatically or by the visitor, the value of the city must be entered in the cookies of the visitor's browser.