D&D 5E Pacifist Builds By Class

One thing I've been thinking a lot about lately is what sub-classes/archetypes are the "best" options for building pacifist (or, perhaps, "violence-avoidant problem solver") builds.

I started out just thinking about what class would be best, but now I can't stop thinking about what would be the most optimized builds per class. I don't have access to all the published options vis a vis archetypes and so on (just the core 3 and SCAG), so I know I'm probably missing out on some interesting ideas for defusing combat/non-lethally ending combats you can't defuse.

Has anyone else done anything like this or have any ideas to share? I'm particularly interested in stuff outside the core 3 and SCAG that I might not be aware of.

Grappling barbarian/fighter with shield master. You can also KO anyone with a melee attack, without killing.
Lore bard, land druid, enchanting wizard, life cleric, fey warlock, and charming sorcerer. Going with support and control spells. Hypnotic pattern and sleep.

Can't think of anything good for the monk. Stun and KO.