As someone who doesn't watch much Sentai, these rumors all sound incredible. Might have to actually watch an entire series for once

If I were to personally recommend from each decade, from the 80s Liveman, 90s Gingaman, 2000s Shinkenger, 2010s Gokaiger. And the recent Kiramager is a good one.

Well my recommendations from each decade would be Flashman from 80s, Jetman from 90s, Go-Onger from 00s, Zyuohger from 10s and Kiramager from 20s.

To that I say: Go for it! Go! Go! Go! The best place to start is a Sentai with a theme you can already get into.

*weeps silently* Thank you for recommending my birth Sentai. ToT

I agree with both Sh Ranger, and Agentjx. First of all go for a theme you like more than anything else because that means you are more likely to enjoy it. If you don't care for dinosaurs for example you might not enjoy Abaranger as much as someone who loves dinosaurs.

I do recommend Jetman for 1 reason above all others- there's no power rangers counterpart to potentially affect your opinion or compare it to, and it stands on its own pretty well. With stuff like Go-Onger RPM was great it was very different from Go-Onger and Go-onger was fun but honestly if i had to choose one i'd choose RPM.

Zyuohger i personally dont care for not because of the story or anything but the mecha design, but Kiramager is super fun so far. But again look for a theme be it the story synopsis, or even just the visual aspects.

Watch Jetman.

Sentai 35th anniversary they can become past Sentai, 45th anniversary they are based on past Mecha, so in the 55th anniversary will they be based on past monsters or something?

The Zyuohger Team is "past Mecha"!? Didn't Boukenger do the "Villains-themed-after-Mecha" thing while Zyuohger did the "Villains-themed-after-Older-Villains-and-Monsters" thing?

Zyuohger was the 40th, Zenkaiger is the 45th.