From the Linux-first vendors, I am only aware of Star Labs' StarLite. Their products are pretty good, though a bit price~y.

I'm gonna be honest brother, right now there aren't any good ARM tablets running linux that aren't overpriced and niche products or laptops without a keyboard.

The closest you get for a tablet on a price is taking a look on what https://wiki.postmarketos.org/wiki/Devices has to offer, i've also seen some github pages about people running linux on Xiaomi MI Pads.

like this one. I can't garantee you're going to have a good experience running it this way, but you technically can.

I also encourage you to look for x86 tablets on aliexpress, some of them are decent and will run any linux distro you want.

I like my surface pro 3, worked for 13 years or so

It's not fully available yet, but you might be interested in an Indiegogo project called open_slate

I've backed it 'cause I want to see a good Linux tablet. I can't say that this one will be good, as it hasn't shipped to anyone... If nothing else it's one measure of interest for future products

Edit to add: it also is ARM architecture

I believe mine is a surface 10 and it works fabulously. I have cachyos running on it. You just nees to follow the guide but it works really well. I think the one thing that doesn't work is the camera.

Edit: I take it back, mine is a 9 not a 10

What about the framework 12? Its a 2 in 1 akin to the lenovo yoga.

https://frame.work/laptop12

I absolutely love my fw13.

I have a minisforum V3, which works pretty well, but may be overkill for you and I'm not sure about current availability.

if you want non x86 maybe https://pine64.com/product-category/pinetab/

(you have to add like 100-200$ to the price for shipping and import tax, depending on where you live)

I have lots of other hardware from them and it's solid.