3 room apartment in Frederiksberg

I have a 3-room apartment on Amager, close to shopping, school and institutions. The apartment is very nice and well-maintained, and there is a large and beautiful balcony of about 12 m². The rent is DKK 7,400 with everything included. I am now looking for a 3- or 4-room apartment to swap for, and I am especially interested in the following areas: max rent DKK 10,000 • Søborg • Brønshøj • Østerbro • Nørrebro and Frederiksberg