Harry should have been a DA professor and dated Luna
I wish Harry would have gone for Luna in the end and become a DA professor at Hogwarts. I mean, especially the career choice would have made so much more sense for him - he always said Hogwarts was his home and after having had to tirelessly hunt the Death Eaters and defeat Voldemort, I'm pretty sure anyone would have felt like enough is enough. As for Luna, I feel like her weirdness would compliment Harry's and they both have always felt somewhat like outsiders so they would get each other quite well. And they would definitely be on equal ground. I feel like Ginny had her crush on Harry partly due to how admired he is as "the chosen one". She probably learned a lot of it from home as Ron could be quite envious of Harry at times due to it. She would thereby likely be enamored with Harry due to that more than Luna who really rather doesn't care about such things at all. What I mean, I think Ginny likes Harry more for who she think he is and Luna would like Harry for who he truly is inside, the side that most people never get to know of him. All in all, I think they share a lot more in common besides just quidditch as one might argue to be the case with Ginny.
But yeah, just some thoughts of mine, although I'm all for the golden trio above all other things. What do you guys prefer?
