Best 2–4 Player Class Combinations and Aura Synergies in Diablo 2?

I’m looking for ideas for strong 2-player, 3-player, and 4-player team compositions in Diablo 2.

I’m particularly interested in setups where the characters are built to support each other, not just four random strong solo builds.

Examples:

Multiple Paladins using different auras
Necromancer + Paladin for curses, summons, and aura support
Sorceress with

Enchant supporting melee characters or summons
Paladin aura combinations that boost the whole group

Which class combinations create the strongest synergies for damage, survivability, leveling, and farming?

I haven’t found much detailed information about this, so I’d appreciate practical examples and explanations.

A good 4 player setup would be:

1.

Fanaticism Paladin (maybe with a merc wearing Pride for

Concentration Aura).

2. Any physical damage Barb with

Shout+BC+BO

3.

Poison Nova or

Bone Spear Necro with Curses and

Corpse Explosion

4. Warlock for Sigils and Hexes or a Sorc for

Static Field and elemental damage support for phys immunes


Of course there could also be 4 Fire Warlocks with 4 Apocalypses at once. I mean, why not All four could be naked and they would beat the game (easily).

For a duo, you should probably go for two different kinds of damage (maybe one physical and one elemental or two different elements or one element and one magic etc) so that you can deal with immune or sundered or high resistance monsters better. Then basically any combination of two viable builds that can also finish the game solo should work.
If you want a challenge: A

Poison Dagger Necro and an

Inferno-

Blaze-Sorc