Not a cheap option, but the clothes look nice and not that much on the nose: There is a Radio Eva store in the same building as the Shibuya Pokemon Center. Can't remember the name of the building, but if you take the escalator to the Shibuya Pkm Center you can't miss it. I think it is one floor below the Pkm Center.

You can check the clothes out beforehand here: https://www.radio-eva.jp/ The physical store does not stock everything, pleas keep that in mind :)

Also, the whole building is full of cool smaller clothing and other brands, take your time to explore.