Welcome to BYC! have you had a chance to check out the learning center?
There are several breeds of chickens that are described there.
Otherwise google Henderson chicken chart.
There are many breeds that are calm and lay well, some other things to think about are cold or warm hardiness, broodiness and egg color.
Myself I prefer larger breed birds since they are more cold hardy. I prefer Wyandottes for a general purpose bird because they lay well, are friendly (but not cuddly friendly) do well in cold weather and will occasionally raise chicks. Australorps, Orpingtons, and rocks are also decent breeds I have found. Light brahmas and cochins are also cold hardy and very friendly- but don't lay quite as well, and tend to brood frequently.