Which Plugin is Best for WordPress Search Filtering?

Question

Taxonomy

I want to insert filters on the page based on Wordpress 3.0 to find the necessary information, just like it was done on this site www.studytravel.ru/ - choosing a school for learning English.
Please advise. perhaps there are already ready-made plugins, or at least something similar that could be done for yourself.

Answer 1

There are such plugins, and a lot.
Start with these:
wordpress.org/plugins/search-filter
wordpress.org/plugins/query-multiple-taxonomies

Answer 2

What does tag based mean?
By tags, posts in WP are already searched for