Sister for Carl

[littletoad]

I have a toddler DS named Carl and DD is expected to arrive just days before Christmas. We had agreed on Charlotte nn Lottie but for the past couple of days I've suddenly gone off it and we're back to start one. Don't want something too out there, but can't find a more classic name I like either

TIA

Lucy

Carl and Charlotte are extremely similar.

Anna or Annie
Sarah
Suzi
Rebecca
Rachel
Heidi
Emma

Emma
Bryony
Lucy
Anna
Bella

Sophie

Oh Carl is quite an unusual name now.
Did you just like it or is he named after someone

Sarah
Amy
Hannah
Emma
Faye
Zoe
Erin
Jenna
Megan

I love Carl for a young 'un.

Sophie goes well with it.

Carl come from the same root as Charlotte (Charles), so they would sound a bit odd as a sibset for me.

Carl is simple, fairly classic and international so I agree that Anna, or Emma work well, also:
Viola
Matilda
Alice
Sara
Julia
Lena (or Elena)
Louisa

Some suggestions:
Amy
Emma
Emily
Grace
Judith
Julia
Juliet
Mabel
Miriam
Sophia
Vera

Sarah
Belle
Ivy
Chrissie
Elizabeth
Catherine
Kate
Louise
Anna
Maria
Emma
Emily
Hannah
Eve
Faye
Keri
Shaunna
Nicole
Ciara

Carl and Charlotte are both versions of Charles. I honestly would start thinking of something else for your DD.

Carl and Beth
Carl and Erica
Carl and Lois
Carl and Tess
Carl and Ella
Carl and Robyn
Carl and June
Carl and Gemma
Carl and Blythe
Carl and Laura
Carl and Linnea
Carl and Natalie
Carl and Fiona

Lenny

Leah
Emma
Rebecca
Molly
Katie

Carl and Noelle
Carl and Ruby
Carl and Dorothy (Dottie)
Carl and Rhea
Carl and Zelda (Zizi)
Carl and Zora
Carl and Freya
Carl and Jemima
Carl and Lena
Carl and Pearl
Carl and Lola

Clementine
Pearl
Jemima
Audrey or Aubrey
Martha
Margaret
Delilah
Wren
Holly
Edith

I know twins called Carl and Carly. I wouldn't recommend that as a girl's name.

Carl and Sophie
Carl and Rosie
Carl and Anna
Carl and Kate