Looking for a shared room / one-room flat

Hello everyone,
I’m moving to Freiburg from Venice for a new job as urban planner, and I am looking for a room in a shared flat or one-room apartment, preferibly in the city center.
I would ideally move in from April first, but I could also arrive a bit earlier if needed.
I’m 25 years old, from Italy, and a working professional. I have lived in shared apartments across Europe for the past 7 years (during graduation programs), so I’m used to co-living, and I appreciate a respectful, chill, and friendly environment. I speak English and will start learning German once I move to Freiburg (with a lot of patience).
If you know of anything available, please feel free to message me. I’d really appreciate it!
Thank you in advance!