The veteran is eyeing a return home to France.
"Playing in my home region of Provence-Alpes-Cote d'Azur is something that interests me," said Squillaci, who is out of contract in the summer.
"Marseille, Nice, Monaco, Bastia and Ajaccio are clubs who speak to me. I am 32, and I still have two or three good seasons left.
"I will make my choice depending on the opportunities that arrive."