First, if you want to dress goth, I advise you do not bother with alternative fashion brands like vampire freaks, spiral direct or killstar.
Clothing like that is made by companies who want to commercialise on goth to make it mainstream and sell it to normies and foids.
Their also expensive af too and are poorly made.
This betrays the intention of goth being an underground subculture.
The only good goth fashion brand I can think of is violent delights and their stuff goes for a pretty penny, but I only buy their coats.
I also wouldn't bother wearing shirts of your favourite bands or movies on them because that screams consoomer, brand worshipper.
Try bands like bauhaus, sisters of mercy and joy division
Dracula, Frankenstein, Edger Allen Poe and Jekyll and Hyde are classic goth literature.