Room/Studio dogs allowed

Hi! I'm an italian student from Rome!
I'm looking for a long-term place to stay since I'm currently studing and working in Wien.
I'm searching for a place that could allow also my dog to stay with me, he's really friendly with other dogs, so he would be happy to stay in an apartment with other dogs, he prefer female people rather than male (no kidding) but I would be okay to stay in a mixed apartment without any problems (as far everyone is friendly, he just need to settle in) and he usually stay and sleep all the time in my room.
I go to the office twice a week, ans taking care of my dog will not be a shared issue, I plan my day to always have time for him, no matter what. I am an engineering student, willing to finish the Bachelor (it's tough, I admit it).
I'm a very responsible person and really tidy. I would consider any kind of accommodations: rooms, small apartment, studio. I would like to find a quite place with nice people, hopefully dog-friendly.