I tend to go with the opinion that middle names are a little bit pointless. They rarely get mentioned after the initial new baby announcement so it doesn't matter too much what name you use.
For both my dcs I have used family names for their middle names. Not names I would ever have chosen as first names as i'm not keen enough on them, but names oc family members that we wanted to honour.
Am due dc3 who will be the first girl. There is only one person I'd want to honour enough to use her name as dc3s middle name. The name is v v old fashioned though and quite a bit further away from 'acceptable' name choice for me than my other dcs middle names though.
My choices seem to be to go with v old fashioned middle name that doesn't particularly go with first name because it has a special meaning
OR
go with a middle name that we like and that goes with first name but is not picked for any meaning and doesn't have much point to it iyswim
what do other people think?