https://www.amazon.com/s?k=usb-c+sd-card+reader
https://www.amazon.com/s?k=thunderbolt+3+hdmi
I'll also "let you in on a secret": Apple don't make a USB-C SD card reader.
I'm starting to believe you like it that way.
https://www.amazon.com/s?k=usb-c+sd-card+reader
https://www.amazon.com/s?k=thunderbolt+3+hdmi