PhD student looking for short-term rental

My name is Eleonora and I am 30 years old, I am Italian and live near Rome.
I am interested in renting an apartment for a short period, from July 6 to about September 6. I am pursuing a PhD in Forestry and will stay in Freiburg for two months to collaborate with the university on a research project.
The research center where I will be working is located near Stegen, so I would be very comfortable with an apartment in the eastern part of the city, preferably around Oberau, Waldsee or Littenweiler.
The apartment should have a double bed, as my boyfriend, who has the flexibility to work remotely, will be visiting me for part of my stay.
I am a responsible person, respectful of others' spaces, and I will take great care of the apartment during my stay.
Please feel free to contact me if you need any additional information.
Thank you for your time and I hope to arrange my stay soon.
Best regards,
Eleonora