If you're looking for an alternative to a doorstop, there are several options available. A wedge can be inserted under the door to keep it open, or you could use a chair or other piece of furniture. If you're looking for something more permanent, you could install a door holder or stop. These devices attach to the doorframe and keep the door from closing all the way, allowing air to flow through. Whatever option you choose, make sure it's sturdy and won't damage your flooring.