Welcome to BYC!
I'd start with sexed chicks from a hatchery. This way, you can be 90% certain that you have the correct number of roosters and hens. You could get straight run chicks (that have not been sexed), but then you'd have to do something about the extra roosters. You don't need a rooster to have eggs from a hen, and even if you want fertile eggs, you only need one rooster per ten hens or so. This same problem (too many roosters) would occur if you got hatching eggs. Of course, if you're comfortable slaughtering the roosters or spending time trying to find homes for them, you may want to do one of these two options. Getting chicks is the best way for a newbie to begin, as you don't need an incubator, don't need to worry (too much) about getting females, and, get to spend plenty of time watching the chicks grow up!
How many chickens do you want to get? A good number to start with is six. When you get more experienced (and learn to really love chickens), you will want more. I think that you would enjoy having a variety of breeds; I know I do. The breeds you choose will depend on your individual preferences and needs. Do you want birds for eggs, or birds for meat? A good flock of egg-laying birds for a beginner, in my opinion, would consist of:
One Wyandotte (Columbian is the best variety in my opinion, but may be more difficult to find than more common varieties like Silver-Laced and White. Wyandottes lay plenty of eggs, are cold hardy, and in my experience, are overall great birds)
An Easter Egger (Easter Eggers are crosses that lay green or bluish eggs. They are generally sweet, and are good layers)
A Buff Orpington (Buff Orpingtons are common, and are pretty good layers. They are gentle and cold hardy)
One Australorp (Australorps are very similar to Buff Orpingtons, but are black)
One Red Star (Red Stars are hybrids bred to lay lots of eggs. In my experience, they are docile birds that lay an egg nearly every day)
One Plymouth Rock (Plymouth Rocks are most commonly found in the Barred color. They are common, and lay plenty of eggs)
All of these birds lay brown eggs, except for the Easter Egger. If you wanted white egg-laying breeds, you may want to look into Leghorns and Minorcas. The only downside to many white egg-laying breeds is that they have large combs, which is a problem in cold winters.
I would tell you more information, but this post might get a little long. So, I'll just give you some links to some helpful information on breeds, coops, etc.
https://www.backyardchickens.com/a/...cken-guide-to-picking-backyard-chicken-breeds (breeds and picking the right breeds info)
https://www.backyardchickens.com/a/taking-the-plunge-getting-my-own-chickens-where-do-i-begin
https://www.backyardchickens.com/a/where-to-buy-chicks-hatching-eggs-and-chickens (both of these links contain information on where to get chickens)
https://www.backyardchickens.com/atype/2/Coops (coop designs/ideas)
https://www.backyardchickens.com/a/quick-guide-to-common-brooder-and-coop-bedding-materials (information on bedding)
https://www.backyardchickens.com/a/raising-your-baby-chicks
https://www.backyardchickens.com/a/...ks-the-first-60-days-of-raising-baby-chickens (raising baby chicks)
https://www.backyardchickens.com/a/is-my-chicken-a-pullet-hen-or-a-cockerel-cock (determinig gender)
Hope I've helped!