Android reading app suggestions for my use case

[Findingaway]

Hello all,

This regards using and viewing my Calibre ebook library which is side-loaded onto a microSD on an Android tablet, Galaxy A I think. If there is a better area for posting this question, I'm sorry and would be happy to post there.

The library is copied into the microSD with the Calibre folder structure intact.

Currently I use a clunky method to find and read on this tablet, which is

1. to use CSX file app to view the library
2. search by author
3. press an epub to open it in Moon+ Pro

Moon+ Reader Pro then saves an additional copy to be able to handle it again.

I want to

1. avoid creating an extra copy in storage.
2. be able to import into "shelves" or whatever only books that I've read once or more on the tablet
3. have a way to search by metadata

Suggestions for a different app, method, or settings are welcome. Thanks in advance!