It’s really not as sophisticated, but these guys[1] created an extension that in addition to their main objective of analyzing Facebook’s algorithm also offers a way to create your own Facebook feed. If I got it right, they analyze posts their users see, categorize them by topic and then let you create your own RSS feed with only the topics you want to see.

It’s not clear to me whether you may see posts collected by other users or only ones from your own feed and it seems highly experimental.

[1] https://facebook.tracking.exposed/