I often have already favorited tracks in my Discovery playlist. For example, this week:

It was already one of my top tracks of the year(!)

In my opinion, you should filter favorited and much played tracks from Discovery.

I don’t see how to share those playlists, so all I can do is say my user id is secretagentfrog.

Earlier, I posted another thread, which may or may not be related:
Bug related to Discovery and multiple copies of albums | Deezer Community, bringing music lovers together