Chances are that if you send your pitch to the default email address provided on the website you won't receive a response. It will help you immensely if you do you research and know exactly to whom you are addressing this email to. An easy way to do this is to find the name of the person. Option 1:
Google the following: " <<brand name>> marketing linkedin " " <<brand name>> content manager linkedin " " <<brand name>> brand manager linkedin" " <<brand name>> PR linkedin"
page and look for the listed email.
For example here: firstname.lastname@example.org Name: Victoria Kuzmina
Possible email variations are a combination of first and last names. email@example.com firstname.lastname@example.org email@example.com
You don't lose anything by doing this. The worst would be that the worst that can happen is that the person wouldn't respond to you. If the email doesn't go through it will bounce back. There also options like Mailtracker
to get notified when your message has been checked.
If there is no email you can message the brand directly on IG. "I am a fashion photographer based in Vancouver and that I would like to inquire about a potential photoshoot. What's the best way to get in touch with your PR?"
Look up whom influencers and other photographers are following IG. You will be able to find the right people to reach out to - PR or brand managers.