Oh, Jon. When you compare the man in season eight's finale to the man just two seasons ago, it's like looking at two completely different characters. But there's one thing about both of them that stands true: Jon Snow just wants to be free. He's usually the man who will do the honourable thing for the greater good, and all it has really gotten him is more grief. He's been a commander, a king, and a warden of the north, but rarely has he been genuinely happy. By the time he kills Daenerys, he doesn't even know if he's doing the right thing or not.
Personally, I think Jon's ending is the most fitting one for him. All he's wanted since he was killed back in season five has been some peace and quiet. But there's always been another battle to fight, another evil to combat, another lover who turns out to be your aunt. Or maybe that just happens once. Regardless, as Tormund tells him in episode five, he has the blood of the true North in him. He's finally able to just be whoever the hell he decides to be, rather than dealing with all the politics that come along with his identity. Get your wild man on, Jon!