Decided to put all the Extras/Variants of the Autobots (Didn't do the same with the cons since the only Variants are Kingdom Megatron, and Kingdom & Studio Series Soundwave).

They are (top to bottom, left to right):

War For Cybertron Video Game Bumblebee
Studio Series Offroad Bumblebee
Studio Series B-127
Studio Series 18 Bumblebee
Buzzworthy Bumblebee Origin Bumblebee
Buzzworthy Bumblebee Core Class Bumblebee
Cyberverse Beast Hunters Optimus Prime
War For Cybertron Video Game Optimus Prime
Cyberverse Prime Optimus Prime
Cyberverse Dark Of The Moon Optimus Prime
Kingdom Optimus Prime
Fall Of Cybertron Optimus Prime
Transformers (2010) Ironhide
Transformers (2007) Legion Class Jazz
Prime Robots In Disguise Ratchet
Kingdom Hot Rod
Studio Series Arcee
Studio Series Chromia
Studio Series Elita-1
G1 Smokescreen