The expert helper
You need to decide if it's a local guide you want for sites and local knowledge or did you want to get help in France or even before you get there. Rest assured, you need help even before you land in France or things could get hectic.
Anyway, guides help with touristic attractions and some local knowledge but can't replace the admin assistant that's adept in French procedures and vice versa.
One more stage to this of course is the national mobility expert like pleasehelp.fr only help not only guide your move to and info France but will help lobby change and the perception of foreigners in France.
They help automatically by systematically devising procedures to the French civil services so theft recognise them as good practice. So if your file or application is exactly three same for many clients, it must be right kind of thinking.