I think [name]Sebastian[/name] [name]Nicholas[/name] nn “Bass” works.
Although I have to mention I have really been liking [name]Jaxon[/name] [name]Thatcher[/name] nn “[name]Jax[/name]” that might fit into your list. I can see [name]Jaxon[/name] with all of your girl names!!
Boys are hard. There seem to be a lot fewer classic boys names that aren’t already popular. I love [name]Charles[/name] and [name]Edward[/name], but they are both bigger than [name]Ben[/name] Hur. As is [name]Ben[/name]. Not so much Hur.
Here are some suggestions. These are names that have been rolling around my brain:
[name]Edwin[/name]/[name]Edmund[/name]
[name]Rowland[/name]/[name]Rowly[/name]
[name]Theodore[/name]/[name]Teddy[/name]
[name]Laurence[/name]/[name]Laurie[/name]
Duguld (my husband hates this, but I love it)
[name]Arthur[/name]
[name]Clancy[/name]
[name]Clarence[/name]/[name]Clarry[/name]
A few more names that are slightly obscure but all have strong heritage
[name]Sholto[/name]
[name]Mungo[/name]
[name]Mingus[/name] (trad spelled [name]Menzies[/name])
[name]Quincy[/name]
I like [name]Noah[/name] and [name]Owen[/name] best of your list. I really like [name]Sebastian[/name] too.
Not very many, but I’m exhausted (and surprised that I spelled that right). Let me know if I’m on the right track and I’ll find some more for you later:)