On my website, products are displayed to users based on their respective cities. However, there is an issue where if a particular city does not have product availability in a specific category or collection, the user still sees the collection title on the homepage. This is because we have listed all collections on the homepage, and users also see collections on the collections page. I want to ensure that when users select a city, the contents on the homepage are displayed according to that specific city, rather than showing a blank title. To achieve this, we can create specific collections for each city. However, the concern is how to ensure visibility for city-wise users.