There are many fighter classes, and all can tank in EQ2.
All fighter-based classes get Taunt and variations of it in order to hold agro. Certain fighter subclasses hold agro thru spells, others through better taunts, and others through more damage. Certain fighter subclasses can be healed more efficiently by direct heals, others through heal-over-times, others through what they call reactive heals.
The trick is for the group to spend a minute talking about how they will fight before they start pulling, and virtually any combinations can work.