The article linked below suggests that the Brewers might be willing to trade him to the Yankees for prospects. Hader is a top reliever who eat innings. According to the article:
"Hader, 25, has been one of the most effective relievers in baseball since his debut in 2017. He's accumulated a career 178 ERA+ and 4.85 strikeout-to-walk ratio despite aggressive usage that has often involved multi-inning outings. For perspective, there's only one pitcher in baseball with 30-plus saves who has thrown more innings the past two seasons than Hader's 157 -- and that's Ian Kennedy, who started 22 games during that span. The next closest pitcher, Raisel Iglesias, trails Hader by nearly 20 innings."
I hope that the Twins check in on Hader.