Which Chicken breeds come in Isabella?

Club breed standards describe Isabella for the Brahma and Silkie.

Chicken color

Isabella

A pale greyish fawn, the dilution of liver: Isabella (fawn) Dobermanns and other dogs, and the canary fanciers' isabel series.

4 Chicken breeds list Isabella. It is in a club standard for 4 breeds.

Breed	EE
Brahma	Standard (“perlgrau-isabellgebändert; isabell-perlgraugebändert”)
BrahmaLavender Isabel Penciled	Standard (“perlgrau-isabellgebändert; isabell-perlgraugebändert”)
Silkie	Standard (“isabell”)
SilkieIsabel	Standard (“isabell”)