Plug-ins for Maya

Ziva Dynamics Ziva VFX 1.4 2017-2018: https://zivadynamics.com/ziva-vfx
SLiB Browser Pro 2.0 -- Maya 2015-2018: https://store.cgfront.com/slib-plug-ins/23-slib-browserpro-maya.html
Perseus Rigging 1.6: https://perseusrigging.com/
Rapid Rig: Advanced: https://www.highend3d.com/maya/script/rapid-rig-advanced-auto-rig-for-maya
Rapid Rig: Modular v 2.03.07: https://www.highend3d.com/maya/script/rapid-rig-modular-procedural-auto-rig-for-maya