Nintendo Support: How to Check Available Space on Nintendo Switch
Amazon.com: [Gigastone] 512GB Micro SD Card, Gaming Plus, MicroSDXC Memory Card for Nintendo-Switch, Wyze, GoPro, Dash Cam, Security Camera, 4K Video Recording, UHS-I A1 U3 V30 C10, up to 100MB/s, with Adapter :
SanDisk 256GB MicroSDXC UHS-I Memory Card Micro SD for Nintendo Switch 256 GB 619659184490 | eBay
Amazon.com: SanDisk Micro SDXC Ultra Class 10 UHS-1 512GB Memory Card Works with Nintendo Switch OLED Model Gaming System (SDSQUA4-512G-GN6MN) Bundle with (1) Everything But Stromboli SD & MicroSD Card Reader :
Nintendo Switch has 25.9 GB available memory, OS is 4GB
SanDisk 256GB microSDXC Micro SD Card for Nintendo Switch New - Walmart.com
Amazon.com: SanDisk 128GB Nintendo Switch Micro SD Card/Switch Lite Memory Card 128 GB High Speed (SDSQXAO-128G-GNCZN) Bundle with 1 TF/MicroSDXC Card Reader : Electronics
Nintendo Switch™Micro SD Memory Card, MicroSDX (62 GB - 512 GB) | Western Digital
Amazon.com: SanDisk 128GB microSDXC-Card, Licensed for Nintendo-Switch - SDSQXAO-128G-GNCZN : Video Games