Girl names I am surprised are not more popular

There are a few names that are very similar to what’s in style right now, but are not used very often:

[name]Della[/name] (similar to [name]Ella[/name], [name]Stella[/name], [name]Bella[/name], etc.)
[name]Lana[/name] (similar to [name]Lola[/name], [name]Ava[/name], [name]Lila[/name], etc.)
[name]Etta[/name] (similar to [name]Ella[/name], [name]Eva[/name], [name]Emma[/name], etc.)

Can you think of any other names that you are surprised are not used more often?

[name]Dora[/name] and [name]Flora[/name] (like [name]Nora[/name] and [name]Cora[/name])

I adore [name]Etta[/name], and [name]Cora[/name], but I think they need to be nn’s for something, even if the full name is never used (like [name]Henrietta[/name] and [name]Cordelia[/name], even though I actually am not fond of either of those).

[name]Sylvie[/name] (like [name]Sophie[/name])

Agreed, [name]Susan[/name]! Why isn’t [name]Sylvie[/name]/a more popular?! It’s such a great name!

Oh I love [name]Sylvie[/name]! I actually don’t mind [name]Sylvia[/name] either. It sounds so perfectly soft and feminine when you say it aloud. Other names that you’d think would be more popular…[name]Ada[/name], [name]Viola[/name], [name]Iris[/name], [name]Maisie[/name].

I’m surprised [name]Lena[/name] isn’t more popular. I think it’s pretty and classic; it’s a family name for me.