Goku is #09 in Pop! Animation. The first wave of Dragon Ball Z Pop!s debuted in 2014. Goku was announced to be exclusive to Hot Topic. On August 31, 2016, Pocket Pop! Keychains for Goku and Vegeta were announced. They were officially released in November of that year.
Funko Pop! Wiki: What are Funko Bitty Pop! figures? – Pop Shop
User blog:PrinceZarbon/Funko Pop Dragon Ball Z Request
Son Gokū - Wikipedia, la enciclopedia libre
Funko Pop! Wiki: What are Funko Bitty Pop! figures? – Pop Shop
Funko Pop! Animation Dragon Ball Super SSG Goku Summer Convention
Funko POP! Animation: Dragon Ball Z - Goku, Multicolor
Funko Pop! Wiki: What are Funko Bitty Pop! figures? – Pop Shop
Guide to Dragon Ball Figures
Goku - Wikipedia
Pop! Animation, Funko Wiki
Mom, where's the nearest Hot Topic? : r/danganronpa