Here are, in my opinion, some the best third party plugins for Final Cut. I absolutely love editing with Final Cut, it's so fast in use but often is missing some the essential function you might want. Luckily there are loads of fantastic options to fill these gaps.
Links...
Karl Pilkington T-Shirt - (US) http://amzn.to/2x50CMK
(UK) http://amzn.to/2jsZYnr
Track X and Slice X - http://bit.ly/2proxlN
Skin Smoother 2 - http://bit.ly/2ngBTNl
Lens Flare - http://bit.ly/2ngBTNl
Neat Video - http://bit.ly/2ot7Q6C
mLUT (unfortunately no longer free š¤·š»āāļø) - https://bit.ly/2NoVhrE
S-Curve - http://bit.ly/2oAygr7
White Balance 2 - http://bit.ly/2ngBTNl