Speaking from the high end perspective, as a 60 necro, I've had fun and made money with a 60 shaman (with torpor) at seb, broodmother, dn, and western waste. A monk should be nice too, but necromancers provide a lot of damage and utility if they know what they're doing. Even things that shamans can solo die twice as fast if not faster with a necro sidekick around.
In howling stones, I can't think of a better duo in the entire game for experience 54-60 than nec/shm, specially if shaman has his epic. Do it right and things melt as you kill 5-6 things at a time without stopping in basement, north, or west. Roots, dots, necro charmed pet, it all must die!
I never played a monk or shaman though, so I can't comment on how good or bad a mnk/shm duo is.
Also worth noting that Shadowbond stacks with torpor
[You must be logged in to view images. Log in or Register.] That helps a face tanking shaman a lot with dragons or anything else that hits hard. Practice with cliff golems pre-torpor.
On 55+ kunark spells:
That's what cliff golems are for! The most boring low chance at a high level spell in the game.