Maybe down to 2 … [name_m]Theodore[/name_m] and [name_u]Elias[/name_u]- if we pair them together, what do you think- [name_m]Theodore[/name_m] [name_u]Elias[/name_u] or [name_u]Elias[/name_u] [name_m]Theodore[/name_m]. Last name starts with a K.
I like [name_m]Theodore[/name_m] [name_u]Elias[/name_u].
[name_u]Elias[/name_u] [name_m]Theodore[/name_m]! [name_m]Theodore[/name_m] seems a bit feminine for a first name, though I do like [name_u]Theo[/name_u]–just not as much as [name_u]Elias[/name_u]/[name_m]Eli[/name_m].
[name_u]Elias[/name_u] [name_m]Theodore[/name_m] is very handsome!
[name_u]Elias[/name_u] [name_m]Theodore[/name_m]!
[name_m]Theodore[/name_m] [name_u]Elias[/name_u]!
Both ways are lovely… If you have a fav NN ie [name_m]Eli[/name_m] vs [name_u]Theo[/name_u] than that could help u make the decision 
Both ways are absolutely handsome. I may slightly prefer [name_m]Theodore[/name_m] [name_u]Elias[/name_u] because I love [name_m]Theodore[/name_m] so much.
[name_m]Theodore[/name_m] [name_u]Elias[/name_u].