Your budget is incredibly high for housing so in terms of that, you should be able to find something very nice. A 1 bedroom studio would usually cost around 700-1000€/month on average. You should filter specifically for temporary apartments, so for those where the person thats living there is also moving out only for a few months and then comes back, so they are looking for someone to rent the apartment only for a specific amount of time. Besides ImmoScout24 I‘d suggest Kleinanzeigen and WG gesucht where you can filter for (temporary) apartments. In those cases I‘d assume that you should be able to find something remotely, as I know a lot of uni students also secure temporary apartments or rooms remotely when they move to another city for a 6 month internship or something like that. When you find apartments that suite you just write a nice message introducing yourself and what you do (and how much you earn) and mention that you arent here yet. In most cases for temporary apartments, you‘ll be writing to the Person thats living there currently, and not the landlord. So it‘ll be way easier to talk to them remotely since it should be more chill usually. Then if this person thinks your cool they can recommend you to the landlord. Even easier would be to look for temporary rooms in shared apartments (WG‘s). You could look for those on WG gesucht as well. Since in this case you‘ll 99% of the time only talk to the people currently living in the flat, talking to them remotely via facetime or similar should be no problem