What a wonderful top ten!
[name_f]Rose[/name_f]: I understand your love for this timeless, elegant name. It’s delicate, but strong at the same time. Dreamy and down to earth. So well balanced. It completely deserve to be in your top ten, even though you can’t use it as a first.
[name_f]Clara[/name_f]: Same impression as [name_f]Rose[/name_f], a very well balanced name that feels timeless and elegant. I love the meaning (bright, clear) and the Christmassy vibe because of the Nutcracker reference.
[name_f]Eloise[/name_f]: Another timeless classic. It feels less delicate and more strong that [name_f]Rose[/name_f] and [name_f]Clara[/name_f] (which is not a bad thing). I picture a strong willed intelligent woman.
[name_f]Sofia[/name_f]: [name_u]An[/name_u] international classic and a favorite of mine for years. I know a lot of people think it’s too popular, and it may be true in a lot of countries, but not in my area. I know a couple, but they are not the same age and don’t live close.
[name_f]Flora[/name_f]: A gentle nature name with a gentle vibe. A friend of mine named her daughter like that and she’s adorable. She loves to go outside and discover the world. Her name just suits her. I imagine a nice girl who’s very diplomatic.
[name_f]Iris[/name_f]: This one feels similar to [name_f]Rose[/name_f] again, but it’s less common and therefore, a little bit more edgy. [name_f]Beautiful[/name_f] meaning (rainbow)!! I love the sound and look of this name.
[name_f]Marigold[/name_f]: It’s feels like the name of a character in a children story (which is a good thing for me, because most names on my short list come from childhood literature and movies). It feels young and bright.
[name_f]Cordelia[/name_f]: I don’t know why, but I don’t know how to describe this name. No particular style comes to my mind.
[name_f]Genevieve[/name_f]: A long romantic name! [name_u]Love[/name_u] the NN [name_f]Evie[/name_f] 
[name_f]My[/name_f] favorites to go with [name_f]Lilia[/name_f] are [name_f]Clara[/name_f], [name_f]Iris[/name_f], [name_f]Sofia[/name_f], [name_f]Flora[/name_f], and [name_f]Eloise[/name_f] (in that order).
[name_m]Malachi[/name_m]: Like [name_f]Cordelia[/name_f], I don’t associate that name with any particular style. Maybe it’s just because I haven’t met anyone with the name. I associate it with you however 
[name_u]Ezra[/name_u]: [name_f]Vintage[/name_f] and biblical, with a strong vibe. I imagine someone who stands his ground.
[name_u]Noah[/name_u]: One of my favorite biblical name. It feels gentle, calm, down to earth, I love it.
[name_m]Abel[/name_m]: Same impression as [name_u]Noah[/name_u]!
[name_u]Leo[/name_u]: Such a wonderful name. Timeless and international, beautiful sound, well balanced. It’s my favorite in your list. As other pointed out, the sound of this name is similar to [name_f]Lilia[/name_f]. Personally, I like them together.
[name_m]Joshua[/name_m]: I like the sound of this one. I imagine someone with a bright personality. It feels more modern to me compare to your other boy names.
[name_m]Ethan[/name_m]: Like [name_u]Noah[/name_u] and [name_m]Abel[/name_m] 
[name_m]Solomon[/name_m]: The opposite of [name_m]Joshua[/name_m] - feels older (not a bad thing, just different) and I imagine a boy with a calmer nature.
[name_m]Forrest[/name_m]: Bohemian nature name, really gentle.
[name_u]Henry[/name_u]: How could you go wrong with such a strong classic!
[name_f]My[/name_f] favorites to pair with [name_f]Lilia[/name_f] are [name_m]Abel[/name_m], [name_u]Leo[/name_u], [name_u]Henry[/name_u], [name_u]Ezra[/name_u], [name_m]Forrest[/name_m] and [name_u]Noah[/name_u] (in that order, again). I know you really like eurochic vibe. Considering this particular style, I would go with either [name_u]Leo[/name_u] or [name_u]Henry[/name_u].
Commenting your top then made me realize how versatile [name_f]Lilia[/name_f] is. It can feel classic, bohemian or modern. You can choose your style with the next name you will use, which is really fun!