Hi Bruno,
welcome to the Altbierbude!
If you're looking forward to participate in the ETCC 16, then it might be a little late in that season to found a team, because there are only 3 races left.
You're best chances are to post your interest in this
thread
In this thread you can post your interest to participate as reserve driver.
In the meantime I would recommend that you participate in all the other races on the Altbierbude. They don't require a membership in a team.
There you can show and develop your race craft and make yourself known to other drivers. That will be a big help to find or found a team when the team building phase for the ETCC 17 starts.
CU on track - Cheers
Jens