Celtic/Scandi/nature/witchy names

The ones you have listed look like good solid names, so I don’t see your DH’s objection from that perspective. Anyway, some ideas:

Frida
Morvern
Meriel

Magnus
Erik
Craig

I particularly like Rowan, which can be for a boy or girl. Sorted.

Rhiannon.

Rhiannon rings like a bell through the night
And wouldn't you love to love her?
Takes to the sky like a bird in flight
And who will be her lover?
All your life you've never seen
Woman taken by the wind
Would you stay if she promised you heaven?
Will you ever win?
She is like a cat in the dark
And then she is to darkness
She rules her life like a fine skylark
And when the sky is starless
All your life you've never seen
Woman taken by the wind
Would you stay if she promised you heaven?
Will you ever win?
Will you ever win?
(Rhiannon)
(Rhiannon)
(Rhiannon)
(Rhiannon)
She rings like a bell through the night
And wouldn't you love to love her?
She rules her life like a bird in flight
And who will be her lover?
All your life you've never seen
Woman taken by the wind
Would you stay if she promised you heaven?
Will you ever win?
Will you ever win?
(Rhiannon)
(Rhiannon)
(Rhiannon)
Taken by taken by the sky
(Ah-ah)
Taken by taken by the sky
(Ah-ah)
Taken by taken by the sky
(Ah-ah)
Dreams unwind
Love's a state of mind
Dreams unwind
Love's a state of mind

Amber
Micah

These would be my next girl/boy names. Our two are both nature names. One tree, one bird. So animal, plant, mineral!!!

Ash
Willow
Hazel
River
Skye/sky
Robin
Wren
Glen
Briar
Clove/Clover
Misty
Fern
Poppy
Laurel

Iseult

Evan
Cormac
Struan

Lorna
Maya
Elspeth

Morgan is still a boy's name for me.

Dutchess's list looks like copied from a random website.

Sabrina, Stella / Estella, Elowen, Lowenna, Nimue, Manon, Merryn, Meredith, Thora, Iseult/Isolde/Isotta/Ysella/Essylt, Iona, Catrin, Olwen, Igraine, Ione (eye-oh-nee), Selene (Sell-ee-nee), Sorrel, Briar, Anest, Bay, Emerald, Dymphna, Athena, Diana, Circe, Hera, Artemis, Finola, Ffion, Joceline, Maidlin, Linnet, Arran, Anwen, Aislinn, Yolanda, Roxanna, Kinvara, Morwenna, Amaryllis, Juno, Lyra, Keziah, Roslyn, Rosanagh, Flora, Robin, Perdita, Cosima, Myfanwy, Ramona

Idris, Ivo, Gawain, Lachlan / Lochlan, Alistair/Alasdair, Innes, Kester, Owen, Magnus, Uther, Merlin, Fabian, Caspian, Caspar, Cassian, Rufus, Cornelius, Corin, Alexander nn Sacha or Xander, Tristram, Soren, Toben, Dashiell, Joss, Guy, Rafe, Rufus, Blaise, Abraham nn Bram, Darius, Hector, Matthias, Xavier, Odin, Albus, Alberic, Cosmo, Griffin, Diggory, Silas, Elwood, Robin, Jago, Jory, Cathal, Ronan, Cillian, Julius, Lorcan, Dara / Darragh, Elias, Jacoby, Wolfe, Orion, Jay, Aurelius, Cyrus

Luna, Astrid, Aurora, Rowan,