Short term accomodation in Mannheim

Hello, my name is Vishnu, and I'm a 24-year-old student from India. I'm thrilled to be moving to Germany on March 26th to attend SRH University of Applied Sciences in Heidelberg. I'm searching for short-term accommodation in Mannheim or surrounding areas, ideally within a €500 monthly budget (including all utilities). I'm a non-smoker and non-drinker. My interests include music (listening and singing), gaming, and YouTube. I'm an easy going person and am easily approachable to have meaningful conversations. I can speak Gujarati, German (B1 level), French, Kannada and English. I'm also interested in philosophy and psychology and am an avid watcher of content relating to these domains. I'm a responsible and clean individual, so I regularly clean my room and I will require Anmeldung. My initial stay will be a minimum of three months, but I'm open to negotiating a longer period. If you have a room available that meets these criteria, I'd love to hear from you!