I feel like it would be very interesting, and I would probably even be ready to pay for someone to carefully pick interesting content, as I often feel like scrolling for hours only to find one great article (like this one was for me) is a huge price to pay.
This could even go for books. I try reading as much as possible, but it seems like 98% of books I find randomly recommended to me could easily fit into 10 pages, but instead they get drawn out into infinite repetitions because that's the only way nowdays to sell books. If someone was willing to charge me for a well-curated list of books with well written synopsis and a good indication of "Is it worth reading the whole thing even when you know the overall idea", I'd be a happy customer.
Maybe there are people on Substack doing this?