Neighbor claims that its average host makes around $2,000 per year and that its highest earners net more than $20,000.
How much you can make will completely depend on what sort of space you have to offer and whether there are users in the area looking to rent it.
For example, you can list something as small as a spare closet on Neighbor. But it won't earn you nearly as much as a full garage.
To max out your earnings, make sure that whatever space you have to offer is clean, as advertised, and priced fairly. This way, you'll keep customers happy, build up your rating, and keep collecting payouts.