Hi

I want to avoid using my phone with the OP and instead have an entry level, smallish Android tablet with a USB C connector in the right place.

Any suggestions? So far only Samsung Tab 3 or Tab 4 seem to have this connection, but too expensive...  

Hi there. Thanks for reaching out. Hope one of our valued Customer can share their suggestion on the said topic. Please make sure that the device should be on the compatibility list so you were able to utilize all the function. Should you have further question, please let us know. Thank you.

I use Teclast T8 ... 2560x1600, USB C, price ~ 130€, 8.4", Android 7.0
works fine with Osmo Pocket

Thanks BeterBan, nice one. Is it a problem that the connector is so close to one of the corners?

No problem - I use it with USB C cable! Either 30cm or better 100cm - for € 3