Hmmm..
At the most basic I'd probably go your standard
Sarah,
Elizabeth and
Rachel. This was a pretty standard sister set in my religious small town growing up.
Conservative but maybe not as basic:
Scarlett,
Audrey and
Ruby
Ivy,
Violet and
Holly
Lucy,
Molly and
Zoey
Eva,
Phoebe and
Hattie
Alice,
Margaret and
Louise
Lisa,
Valerie and
Robin
Sophia,
Olivia,
Isabella
Samantha,
Katherine and
Charlotte
Jessica,
Jennifer and
Jacqueline
Daisy,
Lily and
Violet (real multiple sister names)
Chelsea,
Miranda and
Nichole
Please rate my favorite names list if you have a spare moment, thank you :)
https://www.behindthename.com/pnl/223226/138473