If you want to run a Linux distribution from a USB stick, you need maximum speed. Inexpensive flash drives, while technically "USB 3.1β, are so slow that they are slower than even mechanical platter hard drives in both reading and writing. That's why I bought this.
Samsung BAR Plus 128GB USB 3.1 Flash Drive - 400MB/s - Champagne Silver (MUF-128BE3/AM)
65 Review
Samsung BAR Plus 128GB - High-Speed USB 3.1 Flash Drive Titan Gray (MUF-128BE4/AM)
67 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
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review
2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
84 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review