Mostly in the garage, alternating directions. One lives at work. Wife also has 2 bikes and there is another in the process of being built up to sell that I didn't list. It's not elegant. 2 of them on are a floor to ceiling stand, my carbon one hangs from the ceiling, and my commuter has a stand it uses. The rest take up a good amount of space, but I will loosen up the stems and twist the handlebars inward on some of the lesser used ones. At some point, I'll be building a new shed and will transfer all of my knobby tired bikes to it.
I need to clean and reorganize the garage soon. Another option is going to be getting some wall hooks and hanging most of them on the garage wall