Sister names?

[Lunamaeve]

What do you think of Aurora and Sage as sisters?

I really don't think it matters if sibling names "go" together. It would have no impact on me if my sibling had a crazy name when mine is classic.
I think they are both nice names so use them if you like them.

I think they sound fine together. I’m not the biggest fan of Sage.

I do know of twins called Aurora and Celeste which although themed and I usually don’t like I thought went well together.

Sage and Luna?

Sage and Laurel
Sage and Morven
Sage and Annabel
Sage and Felicity
Sage and Trudy