Well, honestly, I dunno that they can kill off Daenerys or Jon Snow.
Without them, it’s the Lannister Sibling Shit Show with no viable opposition.
If there are 3 people who can’t die before the end of the series, it’s Daenerys, Jon Snow, and Cersei Lannister.
Other than that…everyone’s fair game.
Sports is the crucible of human virtue. The distillate remains are human vice.