I use two hagados.
HGS"P Halayla Hazeh by Rav Mandelbuam from Sanhedria (mashgiach by Rav T Kushelevsky, I believe)
The theme of his hagada is (based on theMalbim, Gra, and Maharal??) showing how the entire magid is a unified structure following the order of the pasuk "והגדת לבנך".
HGS"P Otzar Meforshei Hahagada by Rav Weiss from Antwerp/Stamford Hill.
This is a masterwork. He went through over 800! haggados and collected every single pirush al derech hapshat. It is well organized with many "sidebars" for classic questions like "why four cups", "why do we not make a bracha on magid"
The vort I will share is on Avadim hayinu:
why does it mean that if we were not redeemed, we would still be slave to paroh in mitzroyim? Hello, there's been a lot of water under the bridge since then, why would we not has gone free in the meantime?
So my mother always says in the name of Rav Schwab, that HKB"H created the concept of slaves going free when the yidden went free, until then there was no such idea. If we would not gone free, the US slave would not have been freed in 1865.
This year I saw in the HGS"P Otzar Meforshei Hahagada, that the shem mishmuel says that the