Laurai

Laurai is Cassandra but different:

• worse availability but a better personal skill

• arguably better or worse passive

• more defense instead of fortitude

• slightly more power, slightly less speed

Same tier. 

Hemomancer - Just like the case with Cassandra, there's really nothing wrong with going Ritualist into Hemomancer as its probably her best class. You can go full into play with her massive HP and decent Speed so she won't get doubled while she can sometimes double. Using the Karambit will allow her to heal up to 4 times in combat based on the enemy bleed stacks and using the Plague Ring will inflict heavy bleed on enemies when they hit you while the Lifebinder Ring tunes that heal potential way up.

Additionally, due to Laurai's high hp and might stats, she appreciates crit on weapons to help her Dark Magic passive get the most of itself. Speaking on capitalizing on Dark Magic, Pain Absorption and the Karmic Ring (also the Plague Ring) do just that. Her passive, Ancestral Rage, synergizes well with the Dauntless Ring making her focus more on positioning. Additionally, her passive synergizes pretty decent with the fact that you need to get into the thick of enemy range to make Simulacrums which is what she wants to primarily be doing even with her great combat.

Dreadnought - Due to Laurai's high hp, she makes a fairly decent Dreadnought as she can bonk enemies with some massive Bloodstrokes. Plague Ring works well for a bit of sustain but honestly, Love Ring or Karmic Ring are great options as well as pretty much any other defensive Ring and those options won't mess up your maximized Bloodstroke HP thresholds. 

Tidecaller - Laurai can be a great generic Tidecaller. Dance and heal - standard stuff.

Spirit Keeper - Laurai can be decent as a Spirit Keeper. She appreciates the Waveseer as her tier 2 class to reduce Spirit Bomb damage as well as giving her a cleanse, and cc. Her Spirit Bomb probably won't kill anything, but the Radiance Ring will give some extra dodge to allies on clean up duty on the first hit against them.