It's early days, but naming DS was hard and I'm trying to get in there early as me and DH have different tastes!
This will be DC3, we have a Darcey and George already.
My first preference would be 'i' as the second letter, to follow the pattern.
For a girl I quite like
Ciara
Nina
Livia
For boys I can't think of anything I like. Maybe
Kit/t (would prob use Christopher on BC)
Nicholas
Neither of those would probably pass DH though 
Any ideas?