A couple favorites include the worldSpace and screenSpace tools - along with the rest I believe they will make a great addition to your tool set as they have for me!
Screen Space Tool makes object tracking absolutely easy. Highly recommended for Tracking!
I highly recommend eblabs tools to anyone who wants to save time animating!
The ScreenSpace tool has saved a tonne of time with dynamic object tracks & roto animation. The team here uses it religiously!
whisKEY Toolkit. An indispensable collection of slick tools that consistently saves time and headaches, I highly recommend it to anyone.
eb_labs tools are great for animation. The motion trail tool is the best I've found. It's fast and efficient allowing for a much quicker workflow. I'd highly recommend it.
The underlying code is clean and well thought out, which makes the toolkit's functionality a breeze to integrate into your setup.
Fixing shots takes minutes rather than hours. Screen Space Tool alone is a must for any match mover, especially for object tracking. A huge time saver!
whisKEY is a must have tool for character animation at the blocking stage!
These tools will make you look like you know what you're doing!