I think Eryniel was one of the coolest companion mods in Skyrim and would be fantastic to have her in SSE if possible. I tried looking for a post with the same request before creating this one and I didn't find anything.
Hope somebody wants to port the mod, thank to him or her, thanks to her creator for such a great work, and thanks to all the communitty members that make this games even much more enjoyable.
Here's the link of the original mod:
And a patch for her: