Downloadable, ad free, and DRM free. Music has been selling that way for decades. I've spent thousands on that kind of media, I'd have spent 10 times as much if it had been made available that way. Some people purchase a controlled versions to atone for their pirating sins but that just rewards consumer-hostile business models, and most of the money goes to middle-men that only add negative value to the product they're selling.
Most of the time I watch things once, so I rent it if it's not on a platform I subscribe to. Generally then I can watch it on my tv, ps4, phone, computer, whatever.
Consider that money spent on these products are an indication to studios about what people like. Movie studios, production companies, they make stuff they think they can sell for a profit. I suggest that you try renting movies or buying ones you like. If you run into a situation where one of your concerns comes to life, I think it would be very reasonable to pirate something you've made a good faith effort to pay for. This is kind of how I started and now for the most part I rent/buy with some exceptions. Still downloading some trash tv shows.
Most, if not all, things I've downloaded, which isn't much, I've either rented before, seen on TV or in a theater, or have been on one of the streaming services I pay for at some point. Does that cover me ethically? Some people seem to think so. I personally don't care either way and not a single person on this planet is any worse off for my lack of concern.
Actually it's kind of easier than torrenting and copying files around to various devices I want to watch it on.