I've read a lot of the Everquest I stuff.
But haven't actually played the game since the Planes of Power expansion.

It seems recommended to have:
- a Tank (which can be a Mercenary, Tank Class, or a Pet (if no one else is in melee))
- a Healer (Priest class or Mercenary); many like to have both a Mercenary and their own Healer
- a Porting class (you have both of those Druid/Wizard already)
- Many consider a bard to be essential for a boxing team
- A Mage can make things much easier, via Call of the Hero (run the Mage anywhere, and CotH your team there).

Bard vs Enchanter
A 'Bard' is far easier to box than an 'Enchanter', and is a lot closer to optimal efficiency when boxed than the chanter would be.
Both are excellent pulling classes, but the bard is probably the strongest puller in the game.
Enchanters can be better (with Twin Aura) for groups heavy on Caster Classes.
You can use the /melody command to cycle through songs... /melody 1 2 3 4 1 5 1 2 3 4 6


Shaman vs Cleric
All three Priest classes are very capable healers.
The Cleric is going to have more healing spells, so you're more likely to have the best heal for the situation.
Cleric will bring Fortitude and Symbol buffs (which won't stack with a Druid's Skin line).

The Shaman has Slows, which can greatly reduce the incoming damage (better slow than a Chanter or Bard).
From what I've read, outside of Raid Content having a Slow class is no longer absolutely necessary.
The Shaman HP buff line stacks with both the Cleric or Druid buffs.




There's an EQ Mac Forum, with a ton of boxers.
They had a thread, where they were brainstorming an optimal group.

They liked:
- Enchanter A (Charm a Pet)
- Enchanter B (Charm a Pet)
- Druid (WotW, Snare the Charmed)
- Mage (Malo, Tank Pet when you cannot Charm something)
- Bard (Group songs, including Mez song at one of the charmed pets so there's no issue if it breaks)
- Any other ranged class.

Another guy, with an older system advocated:
- Enchanter (Charm)
- Druid
- Mage
- Necro
- Bard (Mez song at the only Pet)
- Cleric (Heals)