Tokumei Sentai Go-Busters (2012)

It's the 35th sequel of the series from Super Sentai right after Kaizoku Sentai Goukaiger which is the 34th sequel. If you would like to watch the super sentai series chronologically.

It's the 36th sequel of the series from Super Sentai right after Tokumei Sentai Go-Busters which is the 35th sequel. If you would like to watch the super sentai series chronologically.

Both tokusatsu show revolve around the villains trying to get a kind of energy from a source (the Enetron for Go-Busters and Victorium for Ginga S) in order to power up the big bad of their respective series. A special defense team is set to combat these threats.

Both are written by Yasuko Kobayashi and so a lot of the same themes will be present. But also, both feature a group of non-human comedic characters that are partnered with the heroes and voiced by popular voice actors.
And the ending song for Go-busters is performed by the musical group, STARMEN. One of the members of said group was also the voice of Ryuutaros from Kamen Rider Den-O.

It's the very first Super Sentai series what made many of it's successors possible. If you want to watch the original first season of the Super Sentai series.