I've tried to whittle it down....honest...
Boys middle names would be Nicolas Reginald
Girls middle names would be Sukie Mable or a combination of pip/philippa/pippa and Mable.
Those are all family names and are pretty much non-negotiable.
Our surname is double barrelled with initials P-G,sounds like lerry-dorge rubbish at rhyming,made up words instead 
We have two other DC with very short slightly unusual names.
It's super duper early,but I do love names so opinions,thoughts and additions welcome.
Boys;
Atticus
Errol
Idriss
Rufus
Ernest
Jude
Barnaby
Kit
Otis
Ezra
Pasco
Romy
Fenn
Joby
Corin
Cecil
Elmer
Osbert
Mervyn
Percival
Girls;
Myrtle
Clara
Clementine
Vita
Betsy
Nell
Etta
Odette
Tabitha
Juniper/Juno
Merryn
Agatha
Norah
Agnes
Mildred
Maud
Merewyn (MEH-reh-win)