Good luck with your surgery!!
[name_f][/name_f]From your list, I think [name_m]Caleb[/name_m] [name_m]Finnian[/name_m] fits the best!! He has a very spunky [name_f]Irish[/name_f] feel (not too soft at all imo), and I really like the way he flows with the rest of your boys combos!!
[name_f][/name_f][name_m]Caleb[/name_m] [name_m]Finnick[/name_m] is not my favorite. While I do like [name_m]Finnick[/name_m], he feels a little whimsical / fairytale compared to your other more grounded classic middles.
[name_f][/name_f][name_m]Caleb[/name_m] [name_m]Fenwick[/name_m] is a sleeper pick that I actually love!! I much prefer him pronounced FEN-nick (no W sound), which I think makes him feel very posh and fancy!!
[name_f][/name_f]I think [name_m]Caleb[/name_m] [name_m]Finnian[/name_m] fits best, but I love [name_m]Caleb[/name_m] [name_m]Fenwick[/name_m] the most!!