Definitely not, we are here for this 
[name_f]Harriet[/name_f] - I’ve warmed to this one through looking after a little [name_f]Harriet[/name_f] (with a sister named Scarlett) in spite of finding some of the sounds in [name_f]Harriet[/name_f] a little harsh, but she shares a uniqueness that I think matches [name_f]Phoebe[/name_f] really well and I absolutely adore nn [name_f]Hattie[/name_f]!
Maybe this is too far out, but [name_u]Hyacinth[/name_u] - [name_f]Hattie[/name_f]?
[name_f]Sylvie[/name_f] - this is probably my favourite on your list! She’s as sparkly and fresh as [name_f]Phoebe[/name_f] to me! I hope your husband comes around! Would full name [name_f]Sylvia[/name_f], nn [name_f]Sylvie[/name_f] work for either of you?
[name_f]Lucia[/name_f] - so elegant and timeless! [name_m]Luc[/name_m]- variants for your perusal:
[name_f]Lucinda[/name_f]
[name_f]Lucasta[/name_f]
[name_f]Lucienne[/name_f]
[name_u]Luca[/name_u]
[name_f]Lena[/name_f] comes into one of my top girl name categories - concise, not hyper feminine, much like [name_f]Phoebe[/name_f]! I understand what you are saying about loving and disliking the anagram of your husband’s name. That’s very sweet but also there’s a whole alphabet out there. Does it feel a bit unimaginative? [name_f]Phoebe[/name_f] is such a delight, no lack of name-creativity in that choice.
Names like [name_f]Lena[/name_f]:
[name_f]Lyra[/name_f] (I love this PN L-eye-ra with the long i sound)
[name_f]Mira[/name_f]
[name_f]Marnie[/name_f]
[name_f]Una[/name_f]
[name_f]Ulla[/name_f]
[name_f]Nina[/name_f]
[name_f]Inez[/name_f]
[name_f]Iris[/name_f]
[name_u]Ivy[/name_u]
[name_f]Joanna[/name_f] - I could see [name_f]Phoebe[/name_f] and [name_f]Joanna[/name_f], they both have the O and they’re similarly under used at the moment. I’m with you on [name_f]Joanna[/name_f] feeling dated though, that mid 80’s spike in popularity is definitely a feature. Inspired by [name_f]Joanna[/name_f]:
[name_f]Juliet[/name_f]
[name_f]Jemma[/name_f]
[name_f]Jolie[/name_f]
[name_f]Jovie[/name_f]
[name_u]Joni[/name_u]
[name_f]Jeannie[/name_f]
[name_f]Jessamy[/name_f] (has 80’s [name_u]Jess[/name_u] & [name_f]Amy[/name_f] in there that hubby may like, but [name_f]Jessamy[/name_f] does not feel like this at all to me, definitive rare [name_f]Jasmine[/name_f] variant vibes and really sparkly like [name_f]Phoebe[/name_f]. Also [name_f]Jessamine[/name_f]? )
[name_u]Vivian[/name_u] - I don’t think you’d get them confused, but [name_f]Phoebe[/name_f] and [name_f]Vivi[/name_f] do sound surprisingly similar.
[name_f]Alice[/name_f] - style-wise I think [name_f]Phoebe[/name_f] and [name_f]Alice[/name_f] are perfect together! I just find [name_f]Alice[/name_f] a lot less striking than [name_f]Phoebe[/name_f], which I’m sure is because of it’s huge historical popularity.
wildcard
I kept thinking of [name_f]Sibella[/name_f] whilst I was writing this!