The second step to get the target audience was to search and compose groups and pages on social networks, followed by obtaining identifiers from them. To do this, we used a special script that allows us not only to receive e-mail and phone numbers of users, but also to sort the results by location.
Parsing groups in Vk across Ukraine allowed us to get about 6,000 IDs of people related to the HR theme, and more than 32,000 IDs were received from Facebook / Instagram. Below is a screenshot of the list of groups on the left and a screenshot of the email database received from Facebook / Instagram on the right on the right.