IS A ROOM THE BEST OPTION?
Rent a room
Renting a place is definitely a good option, but you need to bring all the things in yourself. That said, this is usually an inexplained option, especially if you can find a place where you can bring all the food and drink yourself. You can rent a room specially designed for events or something more versatile, such as multipurpose rooms that are adapted for all types of events. You should be able to search the venue’s websites to find more details, and if you can’t find anything, you can always call.
You can also think about the option of places where you already visit on a regular basis, the places where you are a regular are more likely to let you in to use the place (even if it is not specially designed for events). For example, a hairdresser. (Yes, you can even choose a hairdresser as a place, any space that has the vibe you’re looking for.)