Today volunteering (also called volunteering) is becoming more and more common in Russia. Moreover, if earlier it was associated mainly with volunteer military units, until today you can become a volunteer in almost any field.
Find out what volunteer organizations are in your city. Search the internet, almost all of them have their own sites. Find the organization whose work appeals to you the most and contact them. Do not be afraid that you will be refused, they are happy to receive any help. Such organizations are of very different directions: environmental, archaeological, aimed at helping orphans or veterans of the Great Patriotic War, etc.
Follow the news in your city. As a rule, if any large city, regional, national or international events, forums, exhibitions, festivals are held, the organizers recruit volunteers to help. In return, volunteers receive, as a rule, food, T-shirts and other products with the symbols of the event, travel to the event venue and accommodation there (if the event takes place, for example, outside the city). And also the opportunity to visit the events of the festival / exhibition / forum free of charge.
Build your own volunteer project. Analyze what social problems are in your community and how you can solve them. Gather a project team, write a project (information on how to do this can be found on the Internet), apply for a grant, or raise funds from sponsors and philanthropists. Engage volunteers like you to implement the project, and cover your activities in the media.