Modules

Database Search

Search API database backend.

Solr connection for Search API.

Use entity tokens to map field values to index fields.

I used this module to format a date field as a year to use as the index value.

Search facets, shows results count for filter options, with extra widgets.

Enable Facets Exposed Filters submodule to integrate with Better Exposed Filters.

Multiple facets in a single block.

Provides configurable search pages at /search/user and /search/node.

Make sure your permissions are set correctly to avoid leaking information.

Drupal's main search module.

Use facets with core views.

Should be able to add an autocomplete for views exposed filters.

I can only get it to work with full text fields (not string).

Autocomplete functionality for Search API.