DRUID

"...and the children dance to the pipes of Pan".

Five Torches Deep Hamunaptra OGL Forbidden Lands Against The Dark Master Castles And Crusades Dragon Magazine Dungeon World Quest D&D 5e Pathfinder 2 Advanced Player's Guide Epic Characters Ultimate Wilderness Shifter

Archetypes

In Pathfinder, archetypes are semi-multi-classes

Pathfinder 2 Core Archetypes Pathfinder Advanced Player's Guide Archetypes Ultimate Wilderness Archetypes

Codex Martialis builds

Codex Martialis Codex Martialis