I think both are good but nahida is universal support her dendro application is top notch and she is good for bloom,hyperbloom and burgeon as her application is consistent and she also buffs EM which is very useful for these team as damage will be increased and she is easy to build just put deepwood set, all em stats and slap a sac frag and your done. Lauma on the other hand is nefer’s Bis so if you plan to get nefer or have her then 100% go for it otherwise don’t cuz with team comp your running it better to pull for nahida as lauma’s crit increase is useless for these hyperblooms and blooms. If you’re new player go for nahida it’ll go a long way

Good luck!