alr so, as a scene kid who has a pretty cool wardrobe herez where ur gonna want 2 go:
anytime i say amazon u can also just check likee depop, ebay, or wherever else if u dont want 2 get it new. and when i say secondhand here are the places i mean: ebay, depop, vinted, mercari, poshmark.
for accessories:
tights, studded belts, tutus, studded bracelets - amazon
kandi supplies is easy to find at craft stores like micheals or joanns but amazon works too.
u can also diy stuff if u have studs nd like fabric.
band bracelets u can get off hot topic or secondhand, especially ebay.
for shirts:
hot topic is good for new band tees, but second hand sites will have better stuff
keywords for shirts u can use are like cupcake cult, mighty fine gir, skelanimals, 2000s, etc.
hot topic skelanimals shirts SUCK tho so go to the skelanimals amazon store they have some dope vintage prints.
pants:
when looking for pants literally any colorful skinny jeans look good, brands like tripp nyc / royal bones are great secondhand. u can also wear skirts by the same brands as well as party store tutus.
remember scene is really just the hair and makeup, i can link scene hair styles for all hair types if u want