Maybe not what you're looking for, but Lemmy generates RSS feeds for views, so you can use a regular RSS app to follow your Lemmy feed, or a community. You can get the URL for the view like:
Also you can use openrss.org to create a feed for that community which gives you a feed that shows thumbnails of each article/post making easier to distinguish the content.
Not maybe like you're envisioning, but Flipboard is probably the closest to that at the moment. I think the idea is pretty cool though! In my head it'd be like a blend of Flipboard and inoreader, letting you log in with a lemmy account, interact via upvote/boost posts and see the comments of a post.