Spent a bit of time playing around with some NPB stats to get some idea on expectations for Suzuki. Two of the most recent NPB players to come over are Shogo Akiyama and Yoshi Tsutsugo. Not the deepest sample size or anything Akiyama's k rate fell off 5% vs his NPB career stats. Tsutugo was 6% which would give Suzuki around a 21% k rate for an expectation. Akiyama's walk rate was 1% better in the MLB thus far. Tsutugo's is basically bang on identical. If Suzuki's walk rate remains the same it would be 12.7%.
In terms of power Tsutugo's iso was .230 in NPB. It's been .178 in the majors. Akiyama's was .153 in NPB an .050 in the majors. So that's like some where between a 50-100 point drop. Suzuki was a .232 ISO.
It's tough to classify what ones BABIP will look like but those 3 indicators tend to be decently predictive. With that being said if you're looking at players with a 12% walk rate or higher, a 21% k rate or lower and a .170 ISO or higher since 2016 the list is pretty short. You're looking at the following dudes
Mike Trout
Freddie Freeman
Alex Bregman
Joey Votto
Juan Soto
Carlos Santana
Aaron Hicks
Andrew McCutchen
Jesse Winker
The low end of those names is roughly a 110 wRC+. Obviously you wouldn't predict some of the higher names on there but even someone like Winker if he plays decent defense is pretty promising.
