Alternative to chev would be a vape team then And Raiden wouldn't work properly since she's an onfielder, not a offfield DPS like Fischl If you have Xingqiu you can use him
A month late here, but Golden Troupe is the best choice on Fischl if you're wanting to use her as an off-field support/DPS, which is what she best excels at.
Actualy, Bennet is a key for boosting DMG for Ningguang as well as double pyro resonance, so Xianling here consider as a good sub DPS for additional damage.