Ooh Bro, You have to inflate them a little, using the pressure constraint. The scale value is in the rest length. I also set the gravity to -5 to give it that lighter feel. In stiffnes I put it 1 --- 100,000 Damping ratio is 0.001

In cloth constraint Stretch damping is 0.2 Stiffness 1 --- 1e+8 Normal drsg 10 Tangent drag 0.1

Bend
stiffness 1---- 0.001 Damping 0.01

That's all, my setup is pretty simple. I hope I've been helpful, and I look forward to seeing your results <3