Sibset help needed!

Tl;dr: need suggestions on baby names for #3, siblings are boys, [name_m]Connor[/name_m] and [name_u]Corin[/name_u] (prefer no more “c” or c sounding names)

We’re having baby #3 and don’t know yet if it’s a boy or girl, but will be finding out soon. Hubby is impossible to pick names with so I’m trying to get a head start to have several suggestions ready once we find out! We have two boys already, [name_m]Connor[/name_m] and [name_u]Corin[/name_u]. We love Irish/English origin names (obviously) and would prefer them to not to be super common. (I realize [name_m]Connor[/name_m] is fairly common but we’ve both never even met a [name_m]Connor[/name_m] before.)
We don’t really want to follow the “C” trend, those just happened to be the only names we could agree on for our boys!
Hubby likes [name_f]Kira[/name_f] for a girl (though it has the same first sound which I’m not crazy about either), I like [name_f]Isla[/name_f].
We have no clue if it’s another boy! I love [name_u]Finley[/name_u] (nn [name_u]Finn[/name_u]), he’s iffy on it. Some other names I like but he has shot down:
[name_m]Bennet[/name_m]
[name_m]Beckett[/name_m]
[name_m]Declan[/name_m]
[name_u]Everett[/name_u]
[name_m]Archer[/name_m]

Help!

[name_m]Isaac[/name_m] stands out to me for a boy name for you. Similar in sound to [name_f]Isla[/name_f] with the hard C sound you have for your other boys and your husband’s girl choice.

I agree isaac!
[name_f]Isla[/name_f] is great too!