As they will have to bear with confinement for most of the day, I would suggest bantam Wyandottes (different colours) or/and bantam Barred Rocks.
Quite a lot of very nice breeds and colourful egg layers do not bear with confinement very well and tend to develop nasty habits when not able to forage and free range.
Quite a lot of very nice breeds and colourful egg layers do not bear with confinement very well and tend to develop nasty habits when not able to forage and free range.