Looking for class input

Looking for opinions.

If you had to choose one of the below combos for classic, which would be your pick? Any experience with any of these?

War/Shm?
War/Shm/Lock for always available dungeons?
War/Shm/Mage?
War/Priest/Lock?
Dru/Priest/Lock?

I don’t have any long term experience, but I have played dozens of combos up to the mid teens on both BFA and private servers to get an idea of what classic pairings might be like. I found it easier to play 2 characters than 3. If 3, I’d go for a full 5 and buy ISBoxer.

Warrior/Sham driving from the warrior works pretty well.
Druid priest lock works pretty well when they’re all in caster form, and gives you the flexibility to have a tank later.

My first two toons to 60 in classic were lock/lock. Then I did mage/priest (very painful in comparison). After classic I generally leveled up pairs where one of them was a lock: lock/druid, lock/priest, etc.

If you want a pocket healer for your warrior, war/shm is good.

If you're thinking about a group of 3 with tank/healer/dps you might as well go tank/healer/3xDPS. Other than the money and some setup time, it's no more difficult to run and then you can do dungeons. My current 5-man group is paladin(tank), druid(healer), mage, lock, hunter. It's actually easier than my first group of war/priest/3xmage.