We have 2 garages and non of them has space for a car.
My former boss rented an office space, that had twice the
floor plan as cellar which was thrown in for free.
An artist friend rented space in a closed brewery, which had
5 story cellars. These two solutions were free, but the mildew
was also.
I’d go with “use it or loose it” in the long term.
mo-i