3-month Short Stay in Berlin from August

I'm Sarah, a visiting pre-doctoral fellow at Max Planck Institute for the History of Science, Boltzmannstraße 22, 14195 Berlin (MPIWG). I have to move out of the institute guesthouse in August, and am searching for a short stay from 15.08.2021 to 31.10.2021 (2.5 months). I could also start earlier on 01.08.2021 (3 months).

Any Location is OK as long as I could reach MPIWG by U+S Bahn or bus within 45 mins. I have a rental bike to connect to the nearest transportation hub. Hope the apartment is furnished at least with a kitchen and a washing machine. I basically cook every day at home; joining dinner is welcomed. Since I may have to home office 1-2 days a week, my room needs to have a desk and Internet access (Wifi or LAN). Preferably, bed linen, hangers, trash bin, etc, are provided, while I could also figure out the small necessities myself.

I'm a young woman and wish to share an apartment with other girls, or a couple. No anmeldung is required, but a rental/sublet contract should be available. Sorry that I only speak English but no German.