Looking for a furnished single room flat from Sept 1, 2022 (short term)

Hi, this is Mrinal from India. I just finished my doctorate degree in Physics. I am joining Heidelberg university as a postdoc fellow. My employment at the university starts from Sept 1, 2022. I am thus looking for an apartment there in Heidelberg.
I am a non-smoker. I consider myself as a disciplined, responsible and caring person. Mostly, I keep myself engaged with my work only. In case someone needs any help, either mentally or physically, I would definitely go and help him/her.
In my leisure time, I love to draw/paint. I love running too.