I did a deep dive on this when I replaced my tires. Looked around here as well to see what other people were running. Since I wanted to keep the OE wheels I ended up going with this setup which was based on the 1M safety car.
I ended up with PSS
F: 255/35/19
R 285/30/19
it has the 20mm stagger you are looking for, and gives you a bit more width.
I'd be cautious about going much wider on the OE wheels aren't technically meant to support anything wider than 285.
1mGator had a really nice 265/295 setup
https://www.1addicts.com/forums/show....php?t=1397024
Good luck.