All Auto weights

Blender Development Fund
Asset Library
Blender Development Fund
Asset Library
Easy Face Weight
$17.58$15.82 Dev Fund Contributor

Onion365studio in Addons

Volume Weight Tool
$15

Blood Pixel in Addons

MendWorks Toolkit
$32

MendWorks

WeightMend - Automatic Skin Weights That Don't Fail
$15

MendWorks in Addons

Instant Rigger and Animator: Auto Rig, Animate and Export Humanoid Characters
$39$28.86

blenderustad in Addons

SmartWeight — Smarter Skin Weights for Blender Riggers
$9.99

Skava in Addons