Samsung's offering free memory cards up to 256GB when purchasing the Galaxy S9 or Note8 - Neowin
Best Memory Cards for Samsung Galaxy Note 8 - MyMemory Blog
Samsung Galaxy Note8 (N950U) - Available Memory - AT&T
Here's how to insert a microSD card into Galaxy Note 8
Samsung Evo Plus 512GB MicroSD XC 100MB/s UHS-I Memory Card for Samsung Galaxy Note 8 9 10 PLUS + 5G with USB 3.0 MemoryMarket Dual Slot MicroSD & SD ...
2-10Pcs For Samsung Galaxy Note 8 Note 9 Note 10 Lite Note 10+ Sim Card Reader Micro SD Memory Card Holder Slot Repair Parts
Amazon.com: SanDisk 256GB Ultra Micro SDXC Memory Card Bundle Works with Samsung Galaxy Note 8, Note 9, Note Fan Edition Phone UHS-I Class 10 (SDSQUAR-256G-GN6MA) Plus Everything But Stromboli (TM) Card Reader :
Amazon.com: Samsung 512GB Pro Plus MicroSDXC Memory Card for Samsung Galaxy Phone Note 20 Ultra, Note 10+, Note 10 Lite, Note 9, Note 8 (MB-MD512KA) Bundle with 1 Everything But Stromboli Micro