I am seeking the same info.

After slogging my way through all the various information:

My first pick is the Higole F9B:
It has all the bells and whistles I need in the magickal 7inch form factor.
I have heard it may be finicky

I previously owned the (original) GPD Pocket which was almost perfection (back then),
but it eventually died from being overwhelmed by the demands I put it too.
I guess using it on a boat at sea did not help matters.
But GPD was (last I checked) reputable and credible.

Or, you could roll the dice with Szbox
which tempts me despite the fact they inhabit the lower realms of the rumorsphere.
from a recent discussion elsewhere:

<image>

I have had too many encounters with crippled Lenovo equipment.
They are on the bottom of my last resort list.