Facial Animation Rig - Released, .blend available - Finished Projects - Blender Artists Community
Bone Positioning Guide — Blender Manual
Niall on Twitter: "Does anybody know of any resources for making face rigs? I'm very tempted to make a custom rig that just uses shapekeys because weight painting all of these face
ArtStation - Advanced Character and Facial Rigging in Blender 2.8
Face Rigging in Blender Tutorial - FlippedNormals
ReveRig - Take your facial animation to another level - Blender Market
Universal Human Face Rig
Create super facial rigging in blender by Get_3d | Fiverr
BLENDER TUTORIAL] Basic Face Rig & Eye track - YouTube