When viewing an author's works, I would love to see which collections I have put them in.
At a minimuim, I would love to see if they are in my favorites. This is mostly so I can see how good a match an author is for me (for deciding to purchase a book). Otherwise, I am clicking in and out of each story, and checking the collections dropdown manually.
So on this page:
https://www.fakku.net/artists/napata
I would see that almost every chapter is in my favorites, and some collections I sort stuff into (since I can't do personal tags).