How & where to find housing in Copenhagen?

I guys,
I will move to Copenhagen and start to work as a Graduate Trainee from September 1st. I am now starting my housing hunt/search, and would now appreciate some input. Any input is of course of interest, but especially answers concerning:

- where can I find ads about furnished places to rent?
- does anyone of you know someone who wants to sublet a furnished place from sep or oct Protected content , for at least a year preferrably?
- which is the best area to live in?

Thanks for any input in advance!

Best,
Charlotte