Hotels in Paris?
You won't find anything in that price range unless you move quite a distance out of the city and take a train in. I was there last summer and stayed at the Hotel Ibis in Montmartre. It was cheap and convenient to a metro station. You needed your card key to get into the lobby and the neighborhood wasn't great - lots of homeless encampments nearby. But it seemed safe in the hotel, which was clean and cheap. https://www.accorhotels.com/gb/hotel-0697-ibis-paris-montmartre-18th/index.shtml
5 nights ..600 euro`s? park bench?
St Germain This hotel was excellent on all levels very similar to odessa hotel wall street. Very clean, newly remodeled, wonderful staff, great location! It was a very small room, but most hotels in this neighborhood are also small. We called last minute and they accommodated our budget and needs. Super friendly staff, recommended restaurants that were great! Will definitely stay here again.
Expensive crappy rude
600 euro for 5 nights is tight. Look on AirB&B or VRBO.