Jon doesn't want it and tbh he is so going to die! Its too predictable for him to take the seat since everyone keeps saying it all the time (Varys, Bran, Samwell) -- Also we all know damn well the entirety of Westoros is coming for the Unsullied and Danaerys so RIP!
So it basically comes down to Sansa or Tyrion the more logical choices :v if not then give it to Hot Pie!