For popular, public content, you could split the price amongst many buyers, like Kickstarter.
Maybe there could be a fixed priced online, which you could contribute towards. I won't pay for movies/tv now, but I'd sure pay for subtitles! Divided between many people, it wouldn't cost much. Not sure how to ensure high quality subs.
(I contributed to doing subs on viki years ago, which seemed like a good thing, but it disappeared, taking all the subtitles with it.)
https://scribie.com/transcript/6946cef33e3c4e3596a819daaac73...
"Why combinator has the people who wrote a mail and email?"
from that and
"Y Combinator has the people who wrote Yahoo Mail and Gmail"
from the YouTube transcript for example.