Free clothing for instagram blogger?

So I post fashion/creative photography on Instagram and I think I have a good eye. I have 2.3k followers and I want to know if theres any brands that will send you clothes to post pictures of yourself in. I know of iwearsin.com but is there any other brands that will do this? I know they collab with bloggers a lot but what about Instagram?

Maybe use Pinterest and see if that develops into anything.