Sometimes it is written on the cover page, if you go on the drama and in the dashboard you click “Subtitle Team” and scroll down the page and you’ll see a whole graphic page, in many cases it is written if QC is required.
Very often movies do not require QC, it could also be a regional access thing, if you cannot access it, you cannot subtitle.
Another way is just find French Moderators (of dramas) and introduce yourself and ask if they have a project that you could participate in.
Very often On Air Korean dramas require QC and/or VikiPass some Standard some Plus and teams are formed before the airing date, therefore older projects and/or movies are the easiest to start with.