Start a network of community initiatives
Start a formal and professionally run network of community initiatives, independent of government
One of the solutions is to start community initiatives like ChangeX in towns and villages : info about ChangeX. That platform curates the best social change ideas, so it will be easy to find a suitable one for a particular community.
It may not work in all parts of Ukraine, but a similar movement is already taking off in Lviv, and it's proving to be a success. People all around Ukraine will be more likely to support it if it will not be run by a government.