>>7571381Honestly I recommend you take a look at each main Rider and pick which one stands out for you the most in terms of design, then look into that one's series.
They're not really connected to each other so it's safe to just pick one that spikes your curiosity.
Though if you really wanna go by the fandom's word, the most recommended ones to start are:
- W
- OOO
- Gaim (this was written by the same dude behind Madoka Magika and Fate Zero)
- Ex-Aid
- Build
- Zero One
