Please do check for more detailed steps with screenshots

1. Sign up to AeroLeads
2. Install the chrome plugin from here
3. Go to linkedin search and search by entering your filters like location, industry etc. You can also use LinkedIn sales navigator search for more filters like revenue, function, seniority etc.
4. Click on the AeroLeads icon besides address bar when you want to add someone. Add the relevant profiles to AeroLeads by clicking on "Add" button.
5. You will be able to see all the data along with business emails and business phone numbers of these profiles on default prospects page at (or on the list page to which you added the records)