Efficient Methods to Find Relevant LinkedIn Contacts for Targeting

Does anyone have a solution for finding relevant contacts through Linkedin. Currently I create the list I want to target in LI sale nav in "Account", then I switch to lead and have a bunch of results. My scraper Datagma, can only scrape 2500 results per day. Clay has "Find people > Query URL Input" using a saved search in lead lists in Linkedin, this is 1 credit per row which for a 10k list would be expensive (as I'd likely filter through this anyway. Am i missing a way of targeting the right type of companies in Linkedin or is there a more efficient way to do it in Clay? FYI, I know clay has "Find people > search query" but historically this hasn't worked as their linkedin account isn't logged in.