cernasite said:
I ended up running that site though Google and yeah. Preeeeetty sure all the settei that they sell on Taobao is on that website for download.

https://www.element3ds.com/thread-91681-1-1.html appears to be a huge collection of highres settei that I saw all over one of those Taobao stores. Don't know if it's all one huge file though. That'd be bad, because I think I have all of them except the Boruto/Naruto ones.

Other ones I found were:

Fate Zero Genga/Douga book (this might be floating around somewhere else, don't know)
https://www.element3ds.com/thread-183892-1-1.html

KARAS
https://www.element3ds.com/thread-140860-1-1.html

Tokyo Ghoul
https://www.element3ds.com/thread-94255-1-7.html

Fairy Tail (might be better quality than the ones I have)
https://www.element3ds.com/thread-67337-1-1.html

One Piece Storyboards, Genga/Douga
https://www.element3ds.com/thread-68476-1-1.html

Is It Wrong to Try to Pick Up Girls in a Dungeon?
https://www.element3ds.com/thread-136925-1-1.html

Black Butler
https://www.element3ds.com/thread-124300-1-1.html

Full Metal Alchemist
https://www.element3ds.com/thread-91791-1-1.html

Summer Wars
https://www.element3ds.com/thread-63309-1-1.html

One Piece
https://www.element3ds.com/thread-62637-1-1.html

Inuyasha
https://www.element3ds.com/thread-135579-1-6.html

Slam Dunk
https://www.element3ds.com/thread-169031-1-1.html

Little Witch Academia
https://www.element3ds.com/thread-147720-1-1.html

I also found a lot of settei on some websites called cgyaojiaohai.com and byzhihuo.com, but I don't know if anyone uses those.