I was in a similar situation years ago and had to move last minute from a place with a two car garage to a condo in the city.
I cleared it with the neighborhood but installed a motorcycle shelter like this one on Amazon. I installed it at the end of the parking lot right under a light post that provided both light as well as a fixed object for me to chain the bike to.
I think with any soft sided option, you'll need to secure directly to the ground so it doesn't blow away and be mindful to clear snow off based on your locale. You'll also want to consider somewhere to chain to if the neighborhood requires that.