Use micro SD card in Galaxy S8 and Galaxy S8+ - Galaxy S8 Guides
64GB Micro SD Memory Card For Samsung Galaxy S8 S8+ Plus Mobile Phone 7427007545373 | eBay
Amazon.com: Ubrokeifixit Galaxy S8,S8 Plus Micro SD Card Slot Single Sim Card Tray Holder Replacement for Samsung Galaxy S8 G950/S8+ Plus G955-Black : Cell Phones & Accessories
Samsung Micro SDXC 512GB EVO Plus Memory Card with Adapter Works with Samsung Tab S8, Tab A8 10.5 (2021), Tab S8+, Tab S8 Ultra (MB-MC512) Bundle with 1 Everything But Stromboli TF