Kenshi_Akuma
Agree with some of the previous comments just look up wind techniques from naruto, air bending from avatar, wind magic from any rpg like wind blades and bullets, flight, body/speed enhancement using wind, wind armour (cover the body in wind to enhance all aspects of the body and provide tough defense), generate storms, suck the oxygen out of someone’s body or suffocate them like Caesar does with gas, enhance staff and bullets speed/strength/durability/sharpness/destructiveness, etc. wind is probably the most diverse element and the possibilities are endless
I think she should have 3 types of abilities offense,defense, and support for offense wind blades (most common) while using bo staff like twisting the weapon looks like dancing or hyuga air palm or using pistol with or w/o bullets to shoot pressurized air or something, for defense kaiten of hyuga(w/o the person doing spinning motion) or just some type of wind barrier (this is redundant bc if mc has observation haki on katakuri level she didnt need to have this but good for paradise level) , then lastly support should be like wrapping mc's body or ally's body with wind to make them lighter or making the opponents momentum weird by pushing wind against them by changing the speed of the wind that hits them. (i dunno about this just blabbering whatever shit that i thought lol)
first of flight a logia turn you into a element sur as wind she should be able to fly, second there is wind everywhere so maybe use it to enhance observation haki, third uppraged wind blade (cause the marine tempest kick create one as a wind human she should be able to do it easily and maybe nullify any used against her?), fourth ignore air resistance? and I m out of idea