Search for leads based on search filters.

Hi, I'm looking to add something to our app that allows a user to search or scrape leads based on various search filters. This could include things like industry, company size, location, etc.

I see these all the time in various apps so I'm looking to see if there is an API service, package or something similar I can tap into that would make it easier to integrate the desired functionality.

Any tips or advice on how to get started would be much appreciated :)