Do you read a lot of articles of any kind? Do you struggle to find a good way to store them for later access? Are you tired of storing bookmarks, that at a later time has just disappeared or got changed content? My answer to the questions was yes. I am very happy that I finally found the app I was looking for:
ReaderView (https://apps.apple.com/app/id954343811)
Why not have a check to see if it meets your needs? I have tried Pocket, Instapaper, etc, but they all had some issues that I was not able to overcome.
What is good with ReaderView is also that it works with content behind paywalls.