I have a garage, where I store my dozen bikes, partially hanging on the wall, partially leaning against the wall. Some have kickstands, so I can just park them somewhere on the garage floor.
I also have a car, but since there is no room, it has to stay outside under the carport. My bikes are more worth than my car anyway, so it's all good.
Sometimes when my kids park their bikes carelessly in the garage it can be a bit challenging on getting through, but I'll just let the air out of their tires, so they know next time not to mess with daddy.