They're not sized specifically for instant film, but the self adhesive albums can hold them pretty nicely. This one on Amazon is one example, but there are lots of these kind out there.

Self Adhesive Photo Album Magnetic Scrapbook Album 40 Pages Flannel Hardcover Length 11 x Width 10.6 (inches) with A Metallic Pen and Photo Album Storage Box DIY Accessories Kits (Blue) https://smile.amazon.com/dp/B07D4965PB/ref=cm_sw_r_cp_apa_i_F74oCbY43JM3K