Simpler Add Menu | Geometry Nodes Addon (Blender 3.4)

Nodetree Utils | Misc. Node Editor Tools (Blender 3.0+)

Node Align | Addon for Organizing Nodetrees (Blender 3.0+)

Classic Modifier Menu | (Blender 4.0+)

Engine-Dependent Material | Blender 4.0 (Eevee and Cycles)