Reviewers from communities like r/softwaregore and r/3dspiracy suggest exercising caution with ultra-cheap readers from dollar stores:
If you are looking for the memory cards themselves to use with a reader, Dollar General consistently stocks reliable brands: PNY 64GB Elite Class 10 U1 V10 SDXC : A standard card with up to 100MB/s read speed. PNY 64GB Elite Class 10 U1 microSDHC dollar-general-sd-card-reader
: The smaller variant often used for phones or action cameras. User Warnings and Expert Advice Dollar General primarily stocks generic or budget brands
: Usually simple USB 2.0 to SD/microSD dongles or "all-in-one" style adapters that support multiple card formats. or Electronic Necessities.
Dollar General primarily stocks generic or budget brands for peripheral electronics. You are most likely to find "store-brand" or low-cost third-party readers: : Vivitar, Bytech, or Electronic Necessities.