Low Cost CAN Interfaces for Linux

CANable:
https://canable.io

CANtact:
https://cantact.io/cantact/users-guide.html

Microchip APGDT002:
https://github.com/rkollataj/mcba_usb/blob/master/mcba_usb.c

USB2CAN:
https://www.8devices.com/products/usb2can

Chinese USB-CAN:
https://github.com/kobolt/usb-can