With the world championship having just ended, we learned a lot about the highest level of gameplay and the heroes that work the best. A lot goes into what makes a hero good, and here I'll try to explain a little bit about why each hero was picked as much as they were in the grand finals. It's not really a tier list, but it should give you close to the same information as one.
Official Naraka Discord:   / discord  

Here are the guides I recommend watching (in order if you're brand new):
Beginner:    • The FIRST Naraka Bladepoint Guide You...  
Intermediate:    • How Naraka Combat Really Works (No Gu...  
Advanced:    • #1 Dodge Guide For Naraka: Bladepoint...  
After those, start looking into weapon/hero specific guides.
General Combos:    • ALL The BASIC Combos For EVERY Weapon...  
General Abilities:    • The BEST ABILITIES for EVERY Characte...  

nararaka.com (informational site by 0b0100)

Some frequently live Twitch channels to check out!
  / masterdeemosenpai  
  / treygotv  
  / c7sper  
  / davonedge  
  / pastdue  
  / mizuki  
I'd love to link more channels, but there's some to start with!

Official Naraka Discord:   / discord  
Naraka/Netease Facebook Group:   / neteasegamers