When I was younger, I loved the Little Medrash Says haggadah, because it had fantastic explanations of everything (a bit wordy, but I’ve never had trouble with that). I just put in post-its by the actual haggadah pages so I wouldn’t have to constantly leaf through.
Now I think it’s too bulky so I’m on to my next obsession— the Baruch Chait/Gadi Pollack hagaddah. It’s fantastic