Help!! Sister for Cillian!!

My son’s name is [name]Cillian[/name], and I can’t come up with a suitable match for his sister on the way. Any suggestions would be appreciated! thanks!

[name]Aislinn[/name]
[name]Arabella[/name]
[name]Bernadette[/name]
[name]Clara[/name]
[name]Hazel[/name]
[name]Maeve[/name]
[name]Nora[/name]
[name]Roisin[/name]
[name]Aurora[/name]
[name]Delaney[/name]
[name]Fiona[/name]
[name]Isla[/name]
[name]Tallulah[/name]
[name]Amelie[/name]
[name]Camilla[/name]
[name]Iris[/name]
[name]Elena[/name]
[name]Esme[/name]
[name]Tessa[/name]
[name]Mathilde[/name]

[name]Kathleen[/name]
[name]Siobahn[/name]

[name]Cillian[/name] and [name]Orla[/name]

All are Welsh, Irish or Scottish to match the celtic [name]Cillian[/name]:

[name]Aine[/name] (AN-ya)
[name]Aoife[/name] (EE-fa)
[name]Aislin[/name] ([name]ASH[/name]-lin)
[name]Bethan[/name]
[name]Caitlin[/name]
[name]Carys[/name]
[name]Cerys[/name]
[name]Ciara[/name] ([name]KEER[/name]-ah)
[name]Cliona[/name] (clee-OH-na)
Delyn
[name]Eleri[/name] (el-EH-ree) - rhymes with 'cherry)
[name]Fiona[/name]
[name]Gwen[/name]
[name]Iona[/name]
[name]Isla[/name]
[name]Mari[/name]
[name]Maeve[/name] (mayv)
[name]Megan[/name]
[name]Niamh[/name] (neev)
[name]Orla[/name] – I love that this means ‘golden princess’
[name]Rhiannon[/name]
[name]Roisin[/name]
[name]Siobhan[/name]
[name]Saoirse[/name] (SAIR-sha)