I would like to implement the list accessible to all users and the display of their profile.
I installed the Droplets Members, but it seems to me that I have to manually enter users and create their personal profile, and I need to be fully automated with the list of default users and groups.
Thanks for all.
You need to create custom module for that.
But for a start, take a look at team module:
http://www.websitebakers.com/pages/modules/listings/various/team.php