For those interested and wondering what other MMPR stuff Funko has done previously, I put this together.
I believe this is all of them, except for the movie Pops (of which there are the original five Rangers, Rita and a two pack of Zordon and Rita as the Red and Green Rangers, respectively) but feel free to correct me.
This is the original wave from early on in the Pop! days. These were not great overall and they were the only ones released for a long time due to some licensing issues or other nonsense.
Quite a while later, they finally got around to releasing the missing Rangers:
(Yes, that is a gold version of the metallic Yellow Ranger. The regular metallic Yellow was in a Black Friday blind box at GameStop. It had a gold chase.)
They also made new molds for the first three as the originals were impossible to find (along with some metallic variants):
Others:
GameStop got these variants as exclusives. They're supposed to be the Rangers in mid-teleport or morph.
Dorbz:
Pens!
Plush!
Pint Size Heroes: