First name that came to mind based on your likes is [name_m]Wolfgang[/name_m]. Also, what about [name_m]Augustine[/name_m]?
Of your list I really like
[name_u]Sage[/name_u] (love for both genders actually)
[name_u]Onyx[/name_u]
[name_m]Jasper[/name_m]
[name_m]Draco[/name_m] - [name_m]Even[/name_m] with such a strong tie to HP, I love it. Actually, maybe because of HP! 
[name_m]Silvius[/name_m]
What about…
[name_m]Silas[/name_m]
[name_m]Rupert[/name_m]
[name_m]Cyprian[/name_m]
[name_m]Cyrus[/name_m]
[name_m]Jupiter[/name_m]
[name_m]Cedric[/name_m]
[name_m]Sylvan[/name_m]
[name_m]Orson[/name_m]
[name_u]Zephyr[/name_u]
[name_u]Ira[/name_u]
[name_m]Thaddeus[/name_m]
[name_m]Ephraim[/name_m]
[name_m]Aurelius[/name_m]
[name_m]Caius[/name_m]
[name_u]Linden[/name_u]
[name_m]Leonidas[/name_m]
[name_m]Otto[/name_m]
[name_m]Matteo[/name_m]
[name_m]Marshall[/name_m] - love the nickname [name_u]Mars[/name_u]
Sorry for any repeats. Hopefully there’s something that you like, or that at least inspires you!
We’ve been throwing around Brennoch for our son… Sounds like it might fit for you 
So many names to read through! Thanks guys!
I like [name_m]Dimitri[/name_m], [name_m]Aurelius[/name_m] and [name_m]Leif[/name_m]