This isn't the best solution, but I use Zotero to manage my article library, and Zotero includes RSS functionality. Most major journals publish RSS feeds of their latest issues, so Zotero will get the updated feed and include all of the information for the article in the app. Double click the article entry and you'll be taken to the article on the publisher's website.
It's not a perfect solution, but it's "good enough" and allows you to curate the journals you want to "follow." Spend an hour or so once a month looking through your RSS feed, grab the articles that are of interest to you, and throw them in your Zotero library and you'll be able to keep up with what's being published from the journals you're following.
There are other apps that perform a similar function and probably do it better (I used Read by QxMD years ago), but this is what I use.