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. Although many people think that their jobs are very pointless indeed if you hired one just for a couple of days you would really start to see how they could help you out, they can suit to people with low budgets or people that like a very strange style.
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.
But it is also true to say that there are disadvantages of shopping online an it would seem that the major one is that you cannot get a good feel for the furniture.
So it is really up to you what kind of furniture you buy whether it is modern 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.