Haven't tried the TB yet but I have tried USB OTG (64, 128, & 256) . It worked great a few times then failed to recognize it. It actually did recognize it, but as a charging device and wouldn't respond to my attempts to choose anything else. I'll get another one at some point. With the ability to change SD cards so fast though, I'm not in a rush.
Here's the one I used:
CableCreation Gold Angled USB3.1 USB-C (Type C) to Standard USB 3.0 A Female Adapter Cable, USB-C OTG Cable The New Macbook, Chromebook Pixel etc., 15CM/ Black https://www.amazon.com/dp/B0194WSKO...ag=hawk-future-20&ascsubtag=UUacUvbUpU5546708