i dont consider myself a 'fashion guru' by any means but one thing i will say is guys you dont need to know the specific brand an item you like is - you need to know what the item is called. very rarely does a brand matter, but knowing that pair of pants is called 'cargo' vs 'boot cut' or the names of dress styles is going to help you find clothes you like WAAAYYYY faster than brand shopping
this also goes for aesthetic or -core titles. 'y2k tank top' is going to get you resellers and fast fashion brands advertising to people looking to meet a current trend. 'thin strap crop tank top' is going to get you a diverse group of results and not upcharge you to hell and back
additionally, shop second hand when you can, second hand and thrift sites typically organize clothes by the cut and color. theyll be more affordable than a depop seller curating you a style to sell you
useful terminology for different kinds of clothing shapes :)
Useful writing reference