Uncommon Irish boy name suggestions

[Loomie]

My mind is completely blank and I'm convinced this baby will never have a name.

I would like something that is not too common - although DS1 is called Oisín, which is gaining in popularity each year.

What about Ciar? I know Ciaran is much more common/normal, but Ciar would be the original form. We stumbled into it while having a Keir v Ciaran debate.

Ronan