May we please have a forum for the Onn line of tablets available at Walmart?
There are a 3 models with easily unlocked bootloaders, and treble support.
ONA19TB007 - 10.1" screen, with docking keyboard.
ONA19TB003 - 10.1" screen without docking keyboard.
ONA19TB002 - 8" screen
All have Android Pie, Mediatek MT8163 SOC, 2GB RAM, 16Gb storage.
Additionally, there is a 7" model, which has only 1 Gb RAM, but not much is known about it yet.
Most of the discussion around these tablets is in this thread, but it's beginning to get to be too much going on in a single thread.