Wordpress plugin or other solution_base of organizations with search engine on the web

Good day, we need urgently optimized:

1) to customize a wordpress plugin or

2) another dedicated solution

Applies to - a database of organizations with a search engine by clique of search criteria for posting on the web, where:

- optimally the organization enters its data on its own after our confirmation (name, location, link to krs, link to FB/LinkedIn, www, search criteria below included)

- it is visible to a limited group on the list of organizations

- can be searched by location/village, locality, sector (ngo, institution), activity profile (6) status (6), beneficiaries (10), preferences (12)

We are looking for creative solutions. Draft in web preview later this year preferably. Cost + optimization www.wolontariatpracowncizy.pl - then write what is worth optimizing within 3k plus.