It does seem like a bit of a strange question but the chair is a very important part of the home and each room usually has a different style unless of course you are in your mid 90's and have the same chairs across the house to match both your carpet and your old fashioned wallpaper.
Is there a way you can tell what furniture is right for each room? Well the first thing you may want to think about doing is getting in an interior designer in as the will know the best thing to do with your home. Believe it or not they can actually help you to decide on what furniture to get in the home no matter what you think about them and they will always advise you on the best options to take whether that is the cheapest or the best looking, you tell them the budget and they will bring in what they think is going to look good in the home.
Of course you could just take a trip to the furniture online as this way you get to choose everything yourself. However the one disadvantage you have for shopping in store is that you always get that irritating sales guy badgering on about how you should get this and how you should get that.
On the other hand there are disadvantages of shopping online and the main one is that you do not get to properly have a look at the furniture you are going to buy.
So it is really up to you what kind of furniture you buy whether it is Contemporary furniture or not you will know what kind to get once you really start to inspect the room.
One of the best ideas to take is to take a good look around the house to see the best route to go down first, always try to do one room at a time.