You should choose a USB 3, 3.2, 4 or Thunderbolt 3, 4 /USB-C hard drive - From the links you can choose larger / smaller storage sizes 

SanDisk 2TB Extreme Portable SSD V2 (Black)


https://www.bhphotovideo.com/c/product/1595432-REG/sandisk_sdssde61_2t00_g25_2tb_extreme_portable_ssd.html


TYPE: SSD

LaCie 2TB Rugged Mini USB 3.0 External Hard Drive


https://www.bhphotovideo.com/c/product/1039044-REG/lacie_9000298_rugged_mini_disk_2tb.html


TYPE: HDD


Samsung 2TB T7 Portable SSD (Titan Gray)


https://www.bhphotovideo.com/c/product/1559839-REG/samsung_mu_pc2t0t_am_2tb_t7_portable_ssd.html


TYPE: SSD

SAMSUNG T7 Shield 4TB, Portable SSD, up-to 1050MB/s, USB 3.2 Gen2, Rugged, IP65 Water & Dust Resistant, for Photographers, Content Creators and Gaming, Extenal Solid State Drive (MU-PE4T0S/AM), Black


SAMSUNG T7 Shield 4TB, Portable SSD, up-to 1050MB/s, USB 3.2 Gen2, Rugged, IP65 Water & Dust Resistant, for Photographers, Content Creators and Gaming, Extenal Solid State Drive (MU-PE4T0S/AM), Black


TYPE: SSD


    

 
 

SanDisk Professional 1TB G-DRIVE ArmorATD USB 3.2 Gen 1 External Hard Drive

https://www.bhphotovideo.com/c/product/1774937-REG/sandisk_professional_sdph81g_001t_gba1d_g_drive_armoratd_1tb_usb_c_3_1.html


TYPE: HDD


just need a functional hard drive this will work fine too.  It is just not as rugged as what we recommend. 
https://www.amazon.com/Toshiba-Canvio-Basics-Portable-External/dp/B0BQX6NNVC/ref=sr_1_3?crid=1WB7HU9ZH6ANZ&keywords=external%2Bhard%2Bdrive&qid=1693421241&s=electronics&sprefix=external%2Celectronics%2C105&sr=1-3&th=1


TYPE: HDD

G-Technology 1TB G-DRIVE ev RaW SSD Portable External Storage with Removable Protective Rubber Bumper - USB 3.0 - 0G04759-1

G-Technology 1TB G-DRIVE ev RaW SSD Portable External Storage with Removable Protective Rubber Bumper - USB 3.0


TYPE: SSD

 

G-Technology 10TB G-DRIVE USB-C (USB 3.1 Gen 1) Desktop External Hard Drive - 0G05678-1


 

G-Technology 10TB G-DRIVE USB-C (USB 3.1 Gen 1) Desktop External Hard Drive - 0G05678-1


TYPE: HDD