Looking for a 1 room furnished apartment in and around Darmstadt

I am Nikhil Tripathi and working as a research scientist at TU Darmstadt since March 1st, 2019. I am currently living in Darmstadt. My current lease at TU guest house is expiring on 31st march, 2020 so currently looking for a furnished 1-room apartment in or around Darmstadt starting from 1st April, 2020. The location is not an issue for me. Also, since I am currently living in Darmstadt, visiting to see the apartment is not an issue for me. I am a non-smoker, peace loving vegetarian and residing in Darmstadt since last 10 months.