I've a selection of OTG adaptors. The all-in-one USB-C to USB-A is a bit unstable for a gadget like a USB stick, SD card reader, Audio adaptor or USB-TV stick, so a USB-C OTG cable with a USB-A socket is better. It's OK for a USB-A to whatever / anything cable.
This one works well (other sellers available).
https://www.amazon.co.uk/gp/product/B0872VN39L/
I also took off the USB-A plug and cable on a USB hub and fitted a Micro USB OTG plug and cable off a dead phone/tablet keyboard. I got the D- and D+ the wrong way on first attempt. I then added a Schottky power diode on the Supply + and a coax power jack socket for optional +5V (power bank or PSU). Works with everything except the USB-TV stick.
The USB-TV stick is fine on the cable based OTG adaptor listed.