New to WordPress, Custom Post types

I have been creating my first WP website from scratch for the past few weeks. The website is pretty simple but still complicated for someone new like me. You can view the website at https://www.VeganCities.com to get a better idea of my issue if that helps.

I have 3 custom post types, Locations, Cuisines, and Restaurants. The Locations will list cities on the sidebar. When a user clicks a specific city they will get a list of restaurants in that city. Then they will be able to click on a specific restaurant for a new page that reviews that specific restuarant.

The Cuisines page will work the same as the locations page but it is split up into the type of food it is (ex. asian, italian etc..)

The Restaurant custom post type will be where the admin can add restaurants to be posted on those pages. I think the right way to do this is list all the Locations and Cuisines into categories and have the admin apply 2 categories to every resturant.

After this, I am not sure what my next step is. More specifically, I am not sure how to call the restaurants based on their category? Sorry if this is a stupid question but I am pulling my hair out trying to figure this out.

Thank you ahead of time for your help!