Through researching existing media institutions, the summary reveals that Advance Publications and Hearst Corporation publish a variety of media products targeted at different audiences. Both companies produce popular fashion magazines including Teen Vogue and Seventeen. While Advance Publications has experience with magazines like Vogue and GQ, Hearst Corporation has longer experience producing teen magazines dating back to 1944. In conclusion, Hearst Corporation would be the most appropriate publisher for the OP's planned fashion magazine due to their experience targeting the intended older teen audience.