Adapters for the Thunderbolt 4, Thunderbolt 3, or USB-C port on your Mac - Apple Support
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
USB C to USB Adapter(2 Pack)
USB-C to Gigabit Network Adapter, USB-C Charging, Thunderbolt | Eaton
StarTech.com Thunderbolt 3 to Thunderbolt 2 Adapter Converter - TB3 to TB2/TB1 Display/Device PC/Mac - TBT3TBTADAP - Audio & Video Cables - CDW.com
Amazon.com: uni USB-C to HDMI Adapter Multiport, Portable Thunderbolt 3 to [4K HDMI, PD Fast Charging 100W, USB 3.0] 3-in-1 Hub Compatible with MacBook Pro/Air, XPS 15, Chromebook, Laptops, and More :
Amazon.com: USB C to USB Hub with 100W PD, uni (Slim& Aluminum& Nylon) USB Type C to USB Adapter with High Speed 3*USB 3.0, USB-C Power Delivery, Thunderbolt 3 Compatible with MacBook
Plugable USB 3.0 or USB C to HDMI Adapter for Dual Monitors, Universal Video Graphics Adapter for Mac and Windows, Thunderbolt 3 / 4, USB 3.0 or USB-C, 1080p@60Hz - Walmart.com
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter White MMEL2AM/A - Best Buy
StarTech Thunderbolt 3 to Thunderbolt Adapter (Black)
USB C Video Adapter, HDMI/VGA/DVI - USB-C Display Adapters | StarTech.com
Apple Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
USB-C to HDMI Adapter, 4K, PD Charging, Thunderbolt 3, White | Eaton