SS aura particles and sounds : https://vrcmods.com/item?id=4532

Goku under CC attribution : https://sketchfab.com/3d-models/goku-1b2295e1d5f84bb5aaab2ea711299417
Gohan free standard sketchfab licence : https://sketchfab.com/3d-models/gohan-70a9fc22f9db41a7acc9c0ee331999f4
Trunks free standard sketchfab licence : https://sketchfab.com/3d-models/super-saiyan-trunks-f39b14f52335464cb32cf5f9c25dc516