Best audio setup for my small theatre room?

https://imgur.com/a/99czEMc Here's my theatre room layout, I want to put in surround sound but it's a tight fit. Would a 5.1 setup be possible for this room? Directly to the left of the couch is the door and there's very little room between the door and back wall, so it'd be difficult to place a speaker in the corner. I also can't place it above the door because of a pipe that's just above the door going across the room. Any suggestions?