Welcome to BYC! The sex links fit the description. They have various names, Red sex link, Black sex link, golden comet, cinnamon queen.....chicks' sex can be distinguished easily by color, thus they are called Sex links. My daughter has 3, they let my 5 yr old granddaughter carry them around. They are egg laying machines, rarely miss a day.
I don't know for sure of other names, but I think we are talking about the same thing. https://en.wikipedia.org/wiki/Sex_link
There are BYC threads on the genetics of sex links such as this: https://www.backyardchickens.com/threads/sex-linked-information.261208/
My daughter's 3 hens each lay an egg almost every day, 6-7 a week each. My non hybrid, hens, which are a barred rock, a speckled sussex, and 4 leghorns, average 3-5 eggs a week each.