2. The state and politicians - I think it's no secret that they want to have their own levers of influence on people.
3. Companies - advertising their products in your own juice! For example, magazines from five)
4.You yourself - you like the TV channel -> go to its website and read -> advertising on the site -> profit, or it is easier for someone to read from the magazine and with a certain peak of popularity more print options are included here.
It happens in very different ways.
Sometimes the owner invests in a publication, who wants to have a direct influence on editorial policy and, due to this, present information in the required form. The state can also act as such an owner.
Sometimes they sponsor those who pay for advertising on the pages of the press or on the TV screen, on the website.
Maybe just a philanthropist who wants to support the publication or a channel, but at the same time wants the journalists to work on it objectively. And it sponsors just for the sake of the media to exist, to provide objective information and not be tempted by the offered money for ordered materials.