Looking for a room for 1 student

About this listing

Hello! My name is Yuliia​,​ I am from Kyiv​,​ Ukraine. I am learning German in Vienna and planing to apply for a University in 2023. Currently​,​ I am attending a German course in Vienna​,​ which continues until the mid-October and after I plan to find a job here. I have to move out of my current place until the mid-September because my landlord wants to give the apartment to his nephew who's coming here for studying. It's hard for me to find a WG because I cannot pay a big caution (like 1000 Euros and more) and I already received few refusals from good options. So plese​,​ let me know it you have something for me. The perfect scenario is a furnished room (at least with a bed and a desk) for ~350 Euro and ~500-600 Euro Kauzion. Thank you!