It is clear, Ronaldo will not stay at Old Trafford with his statements attacking the club and the many names he has involved. after all, Manchester United are trying to end Ronaldo's contract without severance pay. and I'm sure, this is what Ronaldo really wants to leave Old Trafford. the hottest issue at the moment, only the Chelsea boss wants Ronaldo.
as for, with PSG. it seems very unlikely that this will happen. as you said, PSG already has the MNM Trio.
even if the scenario were PSG were interested in signing Ronaldo, he would not be willing because he would not be playing as a regular player. So IMO, it's unrealistic.
As for other rumors, Ronaldo is reported to have offered himself to Real Madrid. Spanish media claim Ronaldo wants to return to the Spanish giants as a replacement for the injured Karim Benzema. I'm sure, Ronaldo issue will be hotter. Moreover, if after Manchester United managed to terminate the contract with Ronaldo.
He knew he would be sent the moment he made that interview, way beforei t was even aired. I think he just wanted to leave and he didn't know how he could do that and he just wanted to prevent a PR disaster and he did it worse by giving that interview.
No united fan I saw wants him in the club neither, they are more interested in the improvement of Garnacho at this point than keeping Ronaldo. He needs to find a team, and it is going to be quite difficult because even though his talents are known, he is seen as a bit toxic for what he did, that interview caused trouble and teams are considering will his talents be enough to cover his toxic personality. Not lower level teams, they would want him, but more about UCL teams consider this.