Physics student looking for housing starting September

Hello everyone; I come from Switzerland (Lausanne, the french part) and I will write my master thesis (14 weeks+ defense) in physics the next semester in Innsbruck. I'm 23 years old.
I have to find a housing from mid-september to the beginning of January (roughly). I would enjoy to share an apartment with roommates more than living alone.
In my free time, I'm mainly climbing ( 3 times a week), and I also like mountaineering, ski touring and this kind of outdoor activities.
I would also like to learn German, I've studied it at school but I haven't practiced in many years.
Please contact me if you have any offers. I could visit the apartments the first and second week of September.