You can get the extension from your account.

The Search & Filter – Beaver Builder Extension allows for seamless integration between the Beaver Builder Posts module and Search & Filter.

Integrating with the Posts Module

1. Add the BB Posts Module to your page
2. In content -> Source choose Search & Filter Query
3. Choose the Search & Filter Query you want to connect with
   
4. In your Search Form, make sure display method is set to Beaver Builder Posts Module
5. Ensure you set the results URL to your page with the module, and enable Ajax without having to configure the settings
   

Beaver Themer – Posts & Products Archives

Because Beaver Themer uses the Posts Module, setup is exactly the same as above.