Facebook
Promoting your brand on Facebook is especially important: it’s a good idea to create a company page and post job openings on it It can also be helpful to post videos that showcase the workplace and introduce employees so that potential candidates can become familiar with the organization’s environment and work culture.

LinkedIn
LinkedIn allows you to create a target audience and can serve as a screening tool in the recruitment process. Users value it for its ability to connect directly with recruiters and provide job listings. Employers can actively search for talent, contact candidates themselves, and publish posts and boost brand awareness.

YouTube
Creating a channel on YouTube allows you to introduce your company to candidates, promote topics related to the field in which your company operates, and share your knowledge and experience with your audience. This allows the potential candidate to recognize the company as progressive and perceive its employees as passionate and specialists.

Instagram
Browsing Instagram, you can find interesting profiles and deduce a lot about the skills of a potential candidate. It is worth looking for interesting accounts on Instagram related to the field in which you are looking for employees, because you can come across passionate people who promote their talents and are looking for work.

Source: https://www.nativeapply.com/top-5-tools-for-social-media-recruiting-for-2021/