hahaha no this was helpful! I feel like these days, you and @eagleeyes knows my style best and sinks through my stubborn brain the most. 
Summary
That’s very fair about [name_f]Arabella[/name_f], and I agree that [name_f]Isobel[/name_f], [name_f]Adele[/name_f], and [name_f]Arabella[/name_f] are all way too much for one sibset lol. tbh for years I’ve been questioning [name_f]Isobel[/name_f] as my true favorite, I feel like I’d consider [name_f]Adele[/name_f], [name_f]Evangeline[/name_f], or [name_f]Vera[/name_f] more seriously were I to find out I was expecting a daughter today… but I’ve loved her so long I can’t seem to truly tell myself she’s not my favorite anymore! Which is why I think I’m more open to considering [name_f]Arabella[/name_f] now when I really wouldn’t have in the past. tbh at this point who knows if I’ll get to use any of these, and if so, surely not all of them! But it is nice to dream, and I met an [name_f]Arabella[/name_f] whilst on holiday last month so it’s easier for me to feel like I could have an [name_f]Arabella[/name_f] of my own.
[name_f]My[/name_f] other hesitation with [name_f]Aurora[/name_f] is that it’s currently my middle for Isobel… so I feel like that means I should really just go for Ariane/Arianne but I can’t seem to tell my heart that convincingly. [name_f]Aurora[/name_f] [name_f]Xanthe[/name_f] is nice! I’ve also always liked [name_f]Aurora[/name_f] [name_f]Lily[/name_f] but I feel like these days it wouldn’t feel so special. Which is why I considered [name_f]Aurora[/name_f] Vivi… but I don’t love [name_f]Aurora[/name_f] + [name_f]Vivi[/name_f] + [name_f]Joy[/name_f]. But if not [name_f]Joy[/name_f], I’m not sure what I’d use instead.
And the one [name_f]Arianne[/name_f] I’ve come across said it like air-ee-anne, so that’s how I say it in my head. There may be a couple valid ones, but that’s what I default to. I think are-ee-ahn is probably also valid but anyways. I’m intrigued by [name_f]Ariane[/name_f] [name_f]Fenella[/name_f] or [name_f]Ariane[/name_f] [name_f]Fionnuala[/name_f]! [name_m]Or[/name_m] even something like [name_f]Ariane[/name_f] [name_f]Fiammetta[/name_f] or [name_f]Ariane[/name_f] [name_f]Fiorella[/name_f]. [name_f]Ariane[/name_f] [name_f]Celandine[/name_f] and [name_f]Ariane[/name_f] [name_f]Cassia[/name_f] are intriguing too!
@daisydarcy - thank you! [name_f]Bella[/name_f] is my default nn for Isobel… but tbh I’m not 100% sure I’m keeping [name_f]Isobel[/name_f] long-term… it’s been my favorite girls’ name for almost 15 years now but lately she’s lost some of her lustre… which is the only reason I’m contemplating [name_f]Arabella[/name_f], really. I didn’t really give her, [name_f]Mirabelle[/name_f], or [name_f]Annabel[/name_f] a shot in the past. [name_f]Aurora[/name_f] [name_f]Noemi[/name_f] is intriguing, and I also like [name_f]Aurora[/name_f] [name_f]Siri[/name_f] in theory… maybe I just need something cutesy like [name_f]Siri[/name_f] or [name_f]Vivi[/name_f] with [name_f]Aurora[/name_f]? lol.
I was also thinking [name_f]Ariane[/name_f] might be the best fit with my other favorites - I like that she feels like she has equal parts [name_f]Adele[/name_f] and [name_f]Evangeline[/name_f]? But I could also see her with [name_f]Isobel[/name_f], [name_f]Claire[/name_f], and [name_f]Vera[/name_f]. I like a lot of the floral combos but I just don’t know that I like them as much as [name_f]Arabella[/name_f] [name_f]Lilac[/name_f] [name_f]Jane[/name_f] yet. [name_f]Ariane[/name_f] [name_f]Forsythia[/name_f] is intriguing, and I’ve also been loving [name_f]Juliet[/name_f] lately so I’d consider [name_f]Ariane[/name_f] [name_f]Juliet[/name_f]. And [name_f]Sabrina[/name_f]! There’s a very special [name_f]Sabrina[/name_f] in my life, I would consider [name_f]Ariane[/name_f] [name_f]Sabrina[/name_f] or [name_f]Ariane[/name_f] Sabine/Sabina to honor her. 
Would love to hear any more thoughts!