Olivier Theyskens?
Ann Demeulemeesteer?
Dries Van Noten?
Jurgi Persoons?
When you say "moved to Paris", they all have a presence in Paris but like any non-French designer, they might not live here all the time. Apart from anything else, there are tax-related reasons for not wishing to spend more than 180 days in France.
Feel free to send me a message or an e-mail. I fit your description of journalist and editor in Paris...
Prosper