I’m trying to come up with sibsets that I like and for this one I’m really leaning towards [name_u]Florence[/name_u]? [name_f]Do[/name_f] all three work together? What middle names would you think of?
Other names I’m considering:
[name_u]Willow[/name_u]
[name_f]Zoey[/name_f]
[name_f]Cora[/name_f]
[name_f]Esther[/name_f]
[name_f]Felicity[/name_f]
[name_f]Tess[/name_f]
I feel like Flora would work better. Love willow/willa!
[name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_u]Florence[/name_u] are a dreamy set!! I like @mea.ola suggestion of [name_f]Flora[/name_f] too!!
[name_f]Tess[/name_f], [name_f]Cora[/name_f] and [name_u]Willow[/name_u] work also well!!
[name_f]Stella[/name_f], [name_u]Hazel[/name_u] and…
[name_f]Willa[/name_f]
[name_f]Luna[/name_f]
[name_f]Nora[/name_f]
[name_f]Pearl[/name_f]
[name_f]Poppy[/name_f]
[name_f]Lucy[/name_f]
[name_f]Nadia[/name_f]
[name_f]Ada[/name_f]
I like [name_f]Stella[/name_f], [name_u]Hazel[/name_u], and [name_f]Cora[/name_f]! [name_u]Florence[/name_u] seems a bit mismatched to me since it’s a vintage name, but [name_f]Stella[/name_f] and [name_u]Hazel[/name_u] are a bit more modern. Other ideas are [name_f]Stella[/name_f], [name_u]Hazel[/name_u], and [name_f]Clara[/name_f] or [name_f]Stella[/name_f], [name_u]Hazel[/name_u], and [name_f]Phoebe[/name_f].
[name_f]Stella[/name_f] & [name_u]Hazel[/name_u] are very sweet together! I think [name_u]Florence[/name_u] rounds out the set nicely, although I prefer [name_f]Flora[/name_f] and I think that fits even a little bit better. From the rest of your list I think [name_u]Willow[/name_u] might be the best match!
I think [name_u]Florence[/name_u] fits perfectly. And much prefer it to [name_f]Flora[/name_f]!
[name_f]Stella[/name_f], [name_u]Hazel[/name_u], & [name_u]Florence[/name_u] are perfect sister names!
For me, [name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_u]Willow[/name_u] just makes sense! Im in love!
I like [name_f]Stella[/name_f], [name_u]Hazel[/name_u], and [name_u]Cove[/name_u], I’m playing with the idea of having the [name_u]Sky[/name_u] (Stella) [name_f]Earth[/name_f] (Hazel), and [name_u]Ocean[/name_u] (Cove)
I agree with everybody saying [name_f]Flora[/name_f] as an alternative to [name_u]Florence[/name_u] 
since I few [name_u]Florence[/name_u] as a bit of the odd ones out due to its length and more vintage energy
Absolutely love [name_u]Florence[/name_u] with this set!
I like that these names have ‘symbols’ associated with them what with [name_f]Stella[/name_f] having the star, [name_u]Hazel[/name_u] of course having the hazelnut tree and I would personally want to continue with this theme. From this list my favourite is definitely [name_u]Florence[/name_u] with the Italian place name attached.
You’ve had a few suggestions so count any repeats as me being in agreement with the berries
[name_f]Stella[/name_f], [name_u]Hazel[/name_u] and…
[name_f]Lilia[/name_f]
[name_u]Wren[/name_u]
[name_f]Ivy[/name_f]
[name_f]Iris[/name_f]
[name_u]June[/name_u]
[name_f]Violet[/name_f]
[name_f]Luna[/name_f]
[name_u]Ruby[/name_u]
[name_f]Olive[/name_f]
[name_f]Aurora[/name_f]
[name_f]Opal[/name_f]
[name_f]Hope[/name_f] this helped
[name_u]Hazel[/name_u] and [name_f]Stella[/name_f] are both on my list! Here’s some other favorites of mine.
[name_f]Olive[/name_f]
[name_f]Cora[/name_f]
[name_f]Nora[/name_f]
[name_f]Daisy[/name_f]
[name_f]Elsie[/name_f]
[name_f]Birdie[/name_f]
[name_f]Margot[/name_f]
[name_f]Flora[/name_f]
[name_f]Charlotte[/name_f]
[name_u]Darcy[/name_u]
I like [name_u]Florence[/name_u], [name_u]Willow[/name_u] & [name_f]Felicity[/name_f] with [name_f]Stella[/name_f] and [name_u]Hazel[/name_u]!
Some other suggestions: (hearts next to my top suggestions)
[name_f]Scarlett[/name_f] 
[name_f]Poppy[/name_f]
[name_f]Pearl[/name_f]
[name_f]Lucy[/name_f]
Mary/Marie/Maren/Maria
[name_f]Violet[/name_f]
[name_u]June[/name_u]
[name_f]Margot[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Elsie[/name_f]
[name_f]Lily[/name_f]
count any repeats as seconds!
Looking at the thread title alone, I was going to suggest [name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_u]Ruby[/name_u]. So consider that a second if anyone has already suggested [name_u]Ruby[/name_u]!
I think [name_u]Florence[/name_u] goes nicely! They all have the sweet, vintage feel. I like the suggestion of [name_f]Flora[/name_f] too.
These 3 are my top 3 from your options
[name_f]Stella[/name_f] , [name_u]Hazel[/name_u] and [name_u]Florence[/name_u]
[name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_f]Tess[/name_f]
[name_f]Stella[/name_f] [name_u]Hazel[/name_u] and [name_f]Cora[/name_f]
[name_f]My[/name_f] suggestions would be
[name_f]Molly[/name_f]
[name_f]Phoebe[/name_f]
Laney/ [name_f]Lindy[/name_f]
Rhea/ [name_f]Raya[/name_f] / [name_f]Raia[/name_f]
[name_f]Libby[/name_f]
[name_f]Essie[/name_f]
I think Flora would be perfect with Stella and Hazel
[name_f]Violet[/name_f] or [name_f]Margot[/name_f] were my first thoughts! [name_f]Stella[/name_f] and [name_u]Hazel[/name_u] are both a little vintage/retro but with a bit of bite to them.
[name_u]Florence[/name_u] is a good fit but feels perhaps a bit too soft and delicate. [name_u]Willow[/name_u], [name_f]Esther[/name_f] and [name_f]Tess[/name_f] are my faves from your list!
[name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_u]Florence[/name_u] work all three together. For middles, [name_f]Stella[/name_f] [name_f]Elizabeth[/name_f], [name_u]Hazel[/name_u] [name_f]Sophie[/name_f] and [name_u]Florence[/name_u] [name_f]Theodora[/name_f] came to mind. I think [name_f]Stella[/name_f], [name_u]Hazel[/name_u] and [name_f]Tess[/name_f] would be a great set too.
i think [name_f]Stella[/name_f], [name_u]Hazel[/name_u], and Willow/Willa work the best. [name_f]Cora[/name_f] is also a good choice
[name_u]Love[/name_u] [name_f]Stella[/name_f] and [name_u]Hazel[/name_u]! Also like [name_f]Zoey[/name_f], [name_f]Cora[/name_f], [name_u]Willow[/name_u], and [name_f]Felicity[/name_f].
Other suggestions:
[name_f]Isabel[/name_f]
[name_f]Ivy[/name_f]
[name_u]Laine[/name_u]
[name_f]Eliza[/name_f]
I would do [name_f]Stella[/name_f] [name_f]Elizabeth[/name_f], [name_u]Hazel[/name_u] [name_f]Katherine[/name_f], & [name_f]Isabel[/name_f] [name_u]Marie[/name_u]!