[name_m]Atticus[/name_m], [name_u]Oberon[/name_u] & [name_m]Cornelius[/name_m], but especially [name_m]Atticus[/name_m] & [name_m]Cornelius[/name_m]. They match [name_m]Horatio[/name_m]'s familiarity while still being a little out-there and, as [name_m]Horatio[/name_m], old-manish (in the most positive way) sounding.
[name_m]Solomon[/name_m] would be another good match.
[name_m]Atticus[/name_m] [name_m]Julian[/name_m] jumped out at me straight away. I think [name_m]Atticus[/name_m] has a similar style to [name_m]Horatio[/name_m], but has his own personality. I’d say [name_m]Horatio[/name_m] & [name_m]Atticus[/name_m] is perfect, but I can see [name_m]Ulysses[/name_m] and [name_m]Solomon[/name_m] working well too, and all of them sound fine with [name_m]Horatio[/name_m].
[name_m]Horatio[/name_m] [name_m]Felix[/name_m] and [name_m]Atticus[/name_m] [name_m]Julian[/name_m] “[name_u]Rory[/name_u]” and “[name_u]Gus[/name_u]”
[name_m]Ulysses[/name_m], [name_m]Cornelius[/name_m], and [name_m]Ignatius[/name_m]! Definitely! [name_m]Horatio[/name_m] [name_m]Felix[/name_m] feels very old school British to me. The only names on your list that seem completely out of place with [name_m]Horatio[/name_m] are [name_m]Atticus[/name_m] and [name_m]Thelonious[/name_m]. Maybe because my only associations are with [name_m]Atticus[/name_m] [name_u]Finch[/name_u] and [name_m]Thelonious[/name_m] Monk, both Americans?
[name_m]Atticus[/name_m] [name_m]Julian[/name_m] and [name_u]Oberon[/name_u] [name_m]Arthur[/name_m] are so dashing and handsome! They feel gentlemanly, storybook-like and old-fashioned-chic in the best way. [name_m]Atticus[/name_m] [name_u]Oberon[/name_u] would be a fabulous combo too, but maybe a bit too fanciful together, without a more grounded name to balance it out.
I like [name_m]Atticus[/name_m] or [name_m]Solomon[/name_m]. I would like [name_m]Solomon[/name_m] [name_u]Jude[/name_u] a little better. And I think the pp suggestion of [name_m]Atticus[/name_m] [name_u]Oberon[/name_u]
The similar middle sounds of [name_m]HorATIo[/name_m] and IngATIus is too similar for me. I dont like them together.
I do worry about the similarity between [name_m]Horatio[/name_m] and [name_m]Ignatius[/name_m]. I [name_u]LOVE[/name_u] both names, and if [name_m]Horatio[/name_m] weren’t the name of my 2nd great grandpa, I would probably choose [name_m]Ignatius[/name_m] over [name_m]Horatio[/name_m], but [name_m]Horatio[/name_m] it is! [name_f]Jade[/name_f] is also an honor name.
I voted for [name_m]Solomon[/name_m] [name_f]Jade[/name_f] and [name_m]Ignatius[/name_m] [name_u]Jule[/name_u]. I can understand why [name_m]Atticus[/name_m] [name_m]Julian[/name_m] is the the favourite, but to me, it just seems a bit too familiar with [name_m]Horatio[/name_m], and so I prefer the more unusual [name_m]Solomon[/name_m] or [name_m]Ignatius[/name_m]. Also [name_m]Solomon[/name_m] [name_f]Jade[/name_f] is just absolutely gorgeous!
[name_m]Horatio[/name_m] [name_m]Felix[/name_m] & [name_m]Solomon[/name_m] [name_f]Jade[/name_f] is my favorite pairing [name_m]Solomon[/name_m] [name_f]Jade[/name_f] has a beautiful sound, and it’s such a bold and an unexpected combo, but doesn’t feel too over the top (at least imo).