Maybe this is unpractical, but what I have done when traveling to areas where I wouldn’t have data:

Use android newpipe app to download youtube videos onto my phone. With wifi I Download a whole bunch of videos that I would normally watch when bored, while doing chores whatever. Then after a couple of days when I am really bored I watch them.

When I am on data newpipe also shows how big a yt video is to download. So I chose a low quality, maybe only audio (ogg), depends on the video and download that. A couple of hours of audio only is just 60mb or something like that. Video is more, but not too much on very low bitrate.

So maybe you know of a free wifi somewhere? Do you neighbors have unlimited data? It’s pretty easy to share and maybe a little bit of money or a case of beer is going to incentivize them.

The biggest question is: how do you use YouTube? Listening to music? Listening to podcasts or streams? Or do you need visuals for cooking recipes, wilderness survival, etc.?

Next question: how many times do you watch andor listen to these videos? Is getting a stream of new content important?

If you re-watch videos, as I often do, it might be worthwhile to download them for future offline consumption. I download yoga ‘flows’ I like, for example. A few months of occasional downloads later, and I now have ~10 yoga routines saved.