First of all, y'all better head
here if you're looking exclusively for Super Sentai stuff.
While I've seen sentai stuff when I was young back in the Philippines before I moved to Canada and back for university, I saw the original 1993 adaptation all the way to the end when Saban used Dairanger footage.
Over time, I did see other stuff like Lightspeed Rescue, Time Force and SPD (I need to head back and watch them in full since I didn't get the chance to do so). However, the other stuff that came before or after those three, for the most part, I kinda refused to watch since I don't dig them TBH (My main reason).
But since Hasbro announced Beast Morphers (Go-Busters), I'll probably watch it since I want to start with something fresh.
Teaser Trailer
Power Morphicon 2018 cast reveal
PS - I've heard that the principal cast is still training in martial arts for the show, but Jacqueline Scislowski is the most experienced since she's been doing martial arts when she was young.