But I can’t

You sure?

I don’t pay for movies or series of (I just don’t). But when I like some music (bands, producers, or even a record label) I end up buying some physical records or merchandising. If you don’t care about that, the most direct way is to go to Bandcamp and buy something on friday. People often want to put a price on their work, and not just “a dollar” like it’s your spare change, but there are several options and websites to do it.

With games I do the same but in Steam.

That’s called “the mantis movement”.