One possibility would be to base the company in London or the Netherlands, where cross-Atlantic carmaker Fiat Chrysler Automobiles has its corporate charter. Fiat Chrysler maintains headquarters in both Italy and the U.S.
No final decisions have been made and the talks, which have been ongoing for several months, may not result in a deal, they said.
A spokesman for the Renault-Nissan alliance said the group doesn't comment on rumours and speculation, while a spokesman for the French finance ministry declined to comment. Representatives for Yokohama, Japan-based Nissan and Renault also declined to comment.
Reuters reported earlier this month that Nissan was in talks to buy the bulk of the French government's stake in Renault, citing unidentified people. The Renault-Nissan alliance said at the time any discussion about a share transaction involving the parties was "pure speculation."
Ghosn has pledged to cement Renault's partnership with Nissan, saying in February that the companies would devise a plan to "make the alliance irreversible." The 64-year-old relinquished the chief executive officer role at Nissan last year to focus on the partnership.
The companies are seeking to double synergies to 10 billion euros ($12.2 billion) by 2022 from 2016. In April, Mitsubishi Motors Corp - in which Nissan is the largest shareholder - will further integrate with the alliance by joining a shared parts-purchasing organization.
The alliance forecasts unit sales of 14 million units by 2022, compared with 10.6 million last year. Volkswagen, the world's largest carmaker, sold 10.7 million vehicles last year.
While the companies have claimed a multitude of benefits from their partnership, its staying power could be complicated until imbalances in the companies' ownership structures are resolved.
Ghosn reiterated last month that Japan wouldn't agree to a tighter structure if France remains a shareholder. He also said he isn't trying to convince the French state to reduce its stake in Renault.
"They decide to be here or to get out," he said. "Frankly, I don't even open this subject. I just consider that I have the shareholders that I have and I try to satisfy them in the best way possible and as much as possible make sure that they understand our strategy and appreciate our results."