If I did have a favorite writing or reading place, it would be a magical revolving chair (inspired by Laura Pauling's magical traveling beach house). I'd press a button on the armrest and it would spin around (not too fast, because I wouldn't want to lose hold of my laptop or my book) and transport me to anyone of these locations:
A loft full of books and light (source)
A cozy place under the stairs (source)
A window seat with a beautiful garden outside (source)
Or a conservatory (source) like this one or just about any place that turns up when I google "images conservatory"
Or a by a luxurious fireplace like this one (source)
The inside of the hobbit hole:
And since it's a magical chair, it could even transport me to a fantasy world just like the one I'm writing or reading about - like this one! (source)
Which one is your favorite? Or what setting would you add?