I tend to look at the Henderson Chicken chart to get an idea of breed characteristics. That narrows it down for me...rather necessary, or I'd want some of everything!
Then I do more online research on the breed(s) that look interesting, and maybe interact with some breeders.
We have cold winters,
want chickens that get along,
can stand confinement in the winter,
are not flighty, and
we like a variety of colors of eggs.
I stay away from featherfeet, as they do kill off the grass in the vicinity of the coop, and they get mud.
I love my one white Plymouth Rock, as she's friendly and smarter than the average chicken. So I'm getting other Rocks, hoping for the same.
I really like my Bantam Black Breasted old English Game, so have gotten some other "colors" to see how they do. They're friendly, don't make a mess, and their eggs are quite a large size for being such a small chicken who spends the day foraging.
I got some Heritage Delawares, thinking I could sell the hatching eggs more easily than some of the other breeds.
There are lots out there I think look cool...so might try some time: Icelandic, Russian Orloff, Mille Fleurr colored something, Norwegian Jaerhon.
...would need more coop construction, though! ha.
bethanyrae