DP advice

i want to list products instead of categories but have approx 800
to list. How is it best to list them?

I want to show companies who stock certain products (the paid listings) in a county or state of which people entered in their search.

For example

product A – London

so effectively a person enters the product name in one search and the county/state/zip code in another

As mentioned i have 800+ prodcuts to list as ‘ categoiries though

any ideas welcome