A big surprise with a small percentage that is able to stop PSG's dominance in league 1, other teams will not be able to compete with PSG in the next few years because no investor dares to fight PSG's financial strength so we just look at it realistically especially since PSG has built a team with huge money since the last few seasons so that it makes them far beyond anything from other league 1 teams
Before PSG got to this level where they are now, someone took the risk to invest in them and got them to this place so an investor can take the risk upon teams like Monaco, Marseille and any other top Ligue 1 team, only that they have not looked like they have the potential which will propel the investors into attempting to invest their funds since they are sure of returns.
There are other ways for other Ligue 1 clubs to attract investors by proving their success in other, more impressive competitions like the UEFA Europa League.
Only then can clubs like Monaco, Marseille, and others have a chance of attracting significant funding from investors.
However, other clubs have also failed to compete for Europa League titles, making them seem unattractive and making investors hesitant to invest.
If these Ligue 1 clubs were willing to think realistically and strive for greater funding, I believe there would be a positive change in their performance.