So basically Pinboard, but for pages of PDFs and other random scraps.
So basically Pinboard, but for pages of PDFs and other random scraps.
https://screenshots.firefox.com/
Just for the browser (but that could include PDFs and other things), I think they aim for a workflow very similar to the one you envision.
Evernote has traditionally been marketed as a note-taking app but for me it is a personal database/encyclopaedia. The ease of finding anything without having to worry about structure or links (though I have a bit of both) is fantastic.
It's so bad that I am actively looking for alternatives, even though I'm dreading getting my highly-formatted data out in a usable form.
I am in the exact same position. Especially so after several senior execs left the Evernote company. I even work on a custom notes store (Django and mysql backed) to keep kopies of all my notes because I really see no real alternative with the search capabilities of Evernote. And no, OneNote is not the same (search wise)
Devonthink on macOS/iOS will save text snippets and text annotations, into a searchable database.