My 'short' list - girls

My favourites from your list are

Abigail
Cora
Clara
Helen
Lucy
Lorna
Juliet
Lauren
Ruby

Posy- too fairy-flowery, what if she wants to play rugby?
Stella- in other languages I think it's pretty, for some reason it doesn't get beyond the Janet/Brenda image for me in English
Poppy- one of my secret likes...would never use it, because it's a bit too Ellie/Evie, but I do like it.
Charlotte- Timeless, classy, elegant. Lovely. Also its last huge growth period was about 15 years ago, so there aren't too many newborn Charlottes.
Ida- Ugly.
Abigail- OK, bit harsh sounding
Cora- I like Cara, but not this
Verity- icky. Don't like faith-hope-charity names
Agnes- Really ugly sounding
Lucinda- OK, bit pony club, but it's better than the dreadful Lucy at least
Tilly - OK
Madison- No, no and thrice no. Do NOT do it.
Ava- bleurgh. Faddy. Love Eve. Loathe Eva/Evie/Ava and any other permutations
Clara- Beautiful, just lovely
Helen- As Clara, well overdue for a revival, would definitely be near the top of my list.
Olivia- And there would be how many in each class?
Lucy- Dripping wet
Lorna- OK, prefer Laura
Ella- see Olivia comments
Dulcie- Janet/Brenda
Juliet- bit too icky, like Julia though
Lauren- see Madison
Ruby - see Poppy

They would be known as Aggie-which can rhyme with quite a lot!

You see even piscesmoon who is normally a woman of good taste isn't keen on Agnes

A former colleague, on hearing it was one of my proposed names for DS2 if a girl said "Good thing he was a boy then!".

She's quite rude tho

That's a long list!

I like Stella, Agnes (love it, most people hate it tho I should warn you), Ava (quick to write!), Clara.

Some of yr others are rather popular if you mind that (Olivia, Charlotte, Poppy, Abigail, Madison, Ella, Lauren - I know at least 3-4 of school-age children all of those).

Like-Charlotte, Lucy,Abigail,Verity, Helen and Juliet.

Hate Madison, Posy,Ida, Cora, Agnes, Tilly, Ava and Ruby.

Overall Lucy is the one I would choose.

Clara the best, of course. But check how pronounced. It's caused me problems my whole life.
I also like Lauren and Ava.

I love Ava. Not too keen on the others really, but in place of Madison, I'd suggest Addison

Posy - Twee
Stella - Okay
Poppy - Cute but a bit childish
Charlotte - Lovely
Ida - Too old lady
Abigail - Very nice
Cora - V sweet - simple but a bit unusual
Verity - Pretty
Agnes - Too old lady
Lucinda - No, but love Lucy
Tilly - Too cutesy
Madison - A bit down market
Ava - Lovely, v pretty
Clara - Gorgeous
Helen - Great name, refreshing to see on a baby. Also love Helena
Olivia - Nice enough but a bit boring
Lucy - Love it, a favourite of mine
Lorna - Never been keen
Ella - Cute but a bit overused, prefer Eleanor - Lovely
Dulcie - Too cutesy but I do like Darcy
Juliet - V pretty
Lauren - Seems a bit dated and boring
Ruby - Cute

Good list over all. I would narrow it down to

Charlotte
Abigail
Cora
Verity
Ava
Clara
Helen
Lucy
Eleanor
Juliet
Ruby

I would probably pick Lucy