My last save is during the party in the citadel dlc. My entire time playing the dlc I kept telling myself that it was the best dlc I've ever played. My next story mode mission is the illusive mans base, I got messed up by feels when it came to legion, so I guess I'm screwed as far as feels go since I did the citadel before that.
I romanced jack in ME2 and ME3, where you can invite her into the apartment is fairly emotionally intense, especially since its jack. Jack is probably my favorite NPC, next would be garrus. It's interesting to see their changes between games.