I think starting pitching is probably the most reliable thing to look at when looking at an opponent. All of these teams- Oakland, Chicago, Minnesota, and Tampa- have very good lineups and their bullpens are at the top of the lists on WAR and ERA. The Yankees bullpen is towards the bottom of the list but Chapman, Green, and Britton is a strong trio out of the bullpen.
I think Oakland would probably be my top choice to face. We've been historically terrible when playing at the Coliseum in the Tito era so the bubble would help us out here. They really don't have a true ace like some of the other teams do. With these other teams, we match Bieber up with Giolito, Maeda, Snell/Glasnow, or Cole which greatly nullifies that Bieber advantage. I'm not sure who Oakland throws Game 1- maybe Chris Bassitt or Jesus Luzardo? Luzardo is pretty good but none of their other starters have quite overwhelming stuff.
I haven't felt comfortable facing Minnesota at all the past 2 seasons with that offense. Maeda has blanked us twice already this season and has been the second best starter in the AL this year.
Glasnow and Snell really worry me if we face Tampa. Could easily see double digit strikeouts from each of them throwing seemingly effortless high heat past our lineup a la Cole and Verlander in the 2018 ALDS.
Chicago would probably be my second choice at the moment since they're so young and are struggling a bit at the moment going in the postseason