Anything with kids realizing how much their family cares about them. Most recent example was in Onward when Ian realizes that while he didn't ever meet his dad, Barley was basically his father growing up. Everything he wanted to share in his life with his father, he shared with Barley. Coco gets me too, Hector never got to see his daughter grow up, and his family never knew why he never came home, which is why they didn't allow music in the house and didn't remember him on the day of the dead. So many Pixar movies.
Anytime a character is willing to sacrifice themselves for their friends or family. In Harry Potter and the Deathly Hallows Part 2, Harry knows he has to let Voldemort kill him to save everyone else. Friends and family that died for him are there with him at the end, make sure he knows he's not alone. Then once Harry finds out what Snape did for him over they years and how much he loved his mother, kills me.
Sometimes the cavalry showing up when all appears lost. My favorite scene in the MCU is during Endgame. Cap stands up, straps on his shield, he's ready to take on all of Thanos's forces alone, he's the last hope. He hears Sam on the radio "On your left." Then the first portal opens, Black Panther and company walk through, they just give him a look, what they did worked, everyone's coming back, he's not alone, all his friends have his back.
Military stuff gets me all the time. "Tell me I'm a good man. Tell me I lived a good life." The end of Lone Survivor when they do the montage of pictures of everyone that died with their families, brutal.
-"There are 3 ways to do things: the right way, the wrong way, and the Max Power way."
-"Isn't the Max Power way the wrong way?"
-"Yes, but faster!"