There is no such mod. It all depends on your personal preferences. If you wanted some some mod recommendations there these are some good ones.
Prophesy of Pendor (Very polished, tons and tons of new features, lots of cool weapons and troops, difficult, my fav mod)
Brytenwalda (set in Dark ages period, my second fav after PoP, tough to play as well)
Light and Darkness (mod with a main storyline)
Nova Aetas (Greatly improved building systems/village, town, and kingdom management, farming, mining, woodcutting, rising up in class through a prestige system, renting out estates, establishing colonies, faction technological advancements over time, etc.)
The Last Days (LOTR mod, one of the best total conversion mods out there)
Perisno (Very similar to PoP)
Gekukojo (if u want to play in Japanese setting)
Rigale (has native map but tons of new features, things like cafting,gathering)
Warsword Conquest (great mod set in warhammer fantasy world)
A clash of Kings (GoT mod)
1257 AD (a huge mod set in 13th century europe, over 40+ factions)