Girls' names

We’re expecting a little girl... Our family has already come up with quite a list of names... but I just can’t seem to find the right one... and that click has to happen.
Our other children are named
S aartje S ander en S ebbe (obviously put together).
My kids think the next little one should also have a name starting with 'S'... but I don’t find anything beautiful... there are a few I kind of like... but I haven’t felt that spark like with the other three yet:
Soetkin
Sya
Silke (but I don’t want that because our mom once had a dog with that name)
I’d love to hear:
Lucie, so I thought... we’d put Lucie officially on the birth certificate, but her 'call name' would be
Sieke. It also means 'Light'... and our whole family could use a bit of light in the darkness after the tragic loss of our niece (she just turned 17).
Would love your opinions, thank you!

This name has some meaning for me because my grandmother (who would have turned 100 this year) was named Lucia.