One of the coolest things about pop up shops is their brevity. For a few weeks or months a new store, restaurant, or salon exists, which drives hype since everyone knows it won't be around forever. But the downside is that not every space will cater to short term leases. Consider booking spaces that offer 3 months or month by month terms for a pop up retail concept.
You can also check out multipurpose spaces like lofts, warehouses, office rooms, or unused classrooms. Many companies keep storage or
class space on hand for future use. When its not actively being used you can rent these spaces for surprisingly affordable rates!