2 Person
Oathbreaker Paladin and Necromancer Wizard.
4 Person
Ancestral Guardian Barbarian with Shield Master
Conquest Paladin that dips two levels of Hexblade Warlock
Arcane Trickster Rogue that dips two levels of War Magic Wizard
Lore Bard that dips two levels of Hexblade Warlock
6 Person...
If I have to play through levels 1-12, I would much rather be a Barbarian/Fighter than a Fighter/Barbarian. Rage and Reckless Attack are better than anything Fighter gives until that second Extra Attack IMO. Most of my campaigns play levels 8-15 though and in those games I might be a...