Indeed, Ninja Sentai Kakuranger, Ninpuu Sentai Hurricanger, and Shuriken Sentai Ninninger.
There are 3 dinosaur sentai as well.
You might want to check the riders if you're only in it for the story, Gaim, W, and Kabuto are still the top on my book.
Watched all of them.
My favorite afterall is W for story.
Gaim for Armor. 2 atmosphere (Ancient - God thingy, Present - Dance, etc.)
Kabuto for Kabuto.