Koeman's future as Barca coach is again in doubt after their form slide in recent weeks.
And RAC-1 says Laporta is now leaning towards replacing Koeman at the end of the season, with three names under consideration.
The favourite is Al Sadd coach and former Barca captain Xavi, followed by Ajax boss Erik ten Hag. The stumbling block is that both have just signed new deals with their respective clubs.
Also under consideration is Barca B coach Javier Garcia Pimienta.