I DO NOT recommend RIR or Leghorn for any beginner chicken owner. They are highly bird aggressive, especially to any other docile breeds. While they may be pretty, and may lay well, unless you want to deal with aggressive hens and possible cannibalism, don't buy them. Unless you want to pay a pretty penny for quality birds from a reputable breeder.
I've heard the buckeyes are bird and food aggressive as well, but I've never had them.
I've heard good things about orpingtons, but I had a bad experience with my roo. I would go ahead and try them.
EasterEggers are extremely varied in their temperaments, as they are mutts. Ameraucanas are great, but both breeds practically STOP laying in the winter, and are less winter hardy.
My TOP suggestion are Australorps - a PERFECT fit for you. They are super friendly, AMAZING layers (my 4 year old hen lays a fairly dark egg every other day), and bird friendly. I don't know what I'll do when my Aus hen isn't the Alpha. Never does any of my birds wrong, calls them to food. A perfect beginner breed.
I would also suggest Sussex. They are good layers, SUPER friendly, and bird-friendly. They are fairly hardy.
Marans lay nice dark eggs, and lay fairly well. They aren't aggressive.