From time to time I've looked to flash drives or small external hard drives to back up some stuff that doesn't require anything heavier. Unfortunately, most of what I found was either buggy (the external hard drive actually messed everything up on it and restarted my computer) or contained additional programs that interfered with its use. My last flash drive before that prided itself on being secure and encrypting its contents, but it was slow and not very user-friendly. These are traditional flash drives with a large amount of available storage. Just plug them in and do what you need to do. That's how everything I've tried should be. No claims from me.
Samsung BAR Plus 128GB USB 3.1 Flash Drive - 400MB/s - Champagne Silver (MUF-128BE3/AM)
65 Review
Compact and Convenient: SanDisk Cruzer Fit USB 32GB Flash Drive (SDCZ33-032G-A11)
66 Review
32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
78 Review
Kingston DataTraveler SE9 32GB USB 2.0 Flash Drive for Reliable Data Storage (DTSE9H/32GBZ)
69 Review
18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
🔜 Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review