Xabi Alonso is probably the hottest manager out there. He's contract with Leverkusen runs till 2026, but apparently, according to Sport Bild, he has a release clause for three specific clubs: Liverpool, Real Madrid and Bayern Munich. If that's true, I don't think he'll resist taking the offer from any of the three.
I wouldn't be surprised to see Alonso in Liverpool, as probably that would be more of an upgrade. And no one really knows what is Klopp up to, he might take a short break, or he might join Bayern or (more likely) Barcelona.