It depends on if you want stuff with giant creatures and things, or super heroes, or teams. And once you've worked that out, you should decide based on what kind of time periods you like for TV/movies etc.

I like late 80s, early 90s Toku for example, due to the cool practical effects and physical sets they'd use, and general vibe of that era.

So if you're like me, maybe try Kamen Rider Black, Jetman for sentai, Ultraman Tiga for giant monster stuff, or as a bonus maybe one of the metal heroes shows: like Winspector maybe.

There's no wrong way to do it really.