Have an ethical rating for the brands they host on their website
For example providing information on transparency, sustainability, fair trade, gender equality, local, minimal waste, vegan or hand crafted. Well Made Clothes is a great example of this https://wellmadeclothes.com.au/ so it can be done!
I'd also love to see a rating system like what these guys do https://goodonyou.eco
this would definitely make me want to shop with THE ICONIC more!!