In search of a Private room in a WG, studio apartment for 3 months.

Hello, Greetings! I am Jigar Shah studying in 2nd year masters course at RWTH Aachen University. I will be moving to Dortmund for my internship starting from 1st June.
I am looking for furnished/semi furnished private room in shared apartment from 1st June to 31st August. I would like to shift to the room 1-2 days prior in order to settle down as I have to join the internship from June 1. The apartment should have all the basic amenities.
My budget is 300 euros (warm rent-including everything).
I am quite an open minded person who is flexible with anyone and everyone and like to interact with new people. When it comes to sharing an apartment, I have been staying in WG for past 2 years. I am a vegetarian. I love to cook and experiment new dishes in cooking.
I am open to some chill evenings, cooking sessions and even beer sessions together. I will make sure that I maintain the privacy in the apartment. I like to keep my space clean and tidy, and will follow the cleaning schedule if any.
Looking forward for any leads and suggestions.

Thank you.