Innoreader can make a virtual feed from changes that appear in any site -- a new feature I haven't tried yet. Used to use Google Reader, but now I pay for Inno, which I'm happy to do.
But unfortunately that is not really a solution. It is like saying that it is ok that a website removed screen-reader support, because you have a screen reader that can still parse the website anyway. The problem is RSS not being made available at all.
RSS being made available less and less, and they have less of an incentive to do so. And I am saddened that a lot of the good work Mozilla did was abandoned by them and that the web is regressing.
Additionally, having to make your own scraper is really not a solution to RSS not being available. Scrapers are very high maintenance, and can easily break with updates.
It's not an outlandish amount of work, if lots of people chip in with their favorite source.
In the same way that I don't think that YouTube allowing users to submit closed caption transcripts, or machine generating them, any substitute for the content creator providing them in the first place. I'm sure in the near future, smart TVs will be able to machine generate closed captions from the audio, but I still don't think we should let television producers off the hook for providing captions.
RSS should be the default. And it is not hard to generate RSS.
I happen to think that big platforms only reluctantly adopted RSS over a decade ago because it was a "standard", and because they felt that it was popular enough to justify the traffic from it. But they do not like RSS. It works against their analytics, their ads, and their control of the presentation.
And while it is cool that people are crowd sourcing scrapers, I think the real solution is to promote RSS itself and encourage more platforms to simply provide it. And organizations like Mozilla taking Facebook's position that RSS is obsolete has been profoundly unhelpful to the web.
It let's me curate sources into different customizable feeds like news or science. I pay for the pro happily since they let me add specific twitter accounts too. Really saves me time!