From our perspective the two most valuable subscriptions are AppleTV+ and Disney Plus. Apple are making by far the best "prestige" TV, and that seems to be their strategy. Quality over quantity, much like their other product ranges.
My wife and I watch slightly less on Disney, but the value it brings us as a family (8yo + 4yo) is enormous. If we could only have one subscription it would be that one.
Amazon Prime Video is just a value add on a subscription we have anyway, although we increasingly shop less on Amazon, without the free shipping we probably would cancel the video subscription.