I doubt Pogba will move to Man City, it is Man United rival and Guardiola seems not interested in a typical player like Pogba. Pogba probably moves to another league (Ligue 1, La Liga, or Serie A). If he wants to have a better situation and play with a new motivation, he is better to move to a different league. I think EPL isn't the right place for Pogba, he probably more fits to play in Serie A or La Liga. But he also has a chance to go to League 1 if PSG is interested to hire him.
Yes, Pogba has a great opportunity to join PSG. Pogba is just waiting to be recruited by PSG. Despite the various information and rumors that developed like Paul Pogba, it is possible to follow in the footsteps of former Manchester United star Carlos Tevez who moved to a city rival club and Manchester City are also reportedly eyeing Pogba. But this for me will not happen. And if Pogba had accepted City's offer, he would have followed in the Argentine striker's footsteps, but the situation would have been a little different.
Pogba style of play is more suitable in the Italian League, Pogba plays little slow, and the Italian League also adopts a slow game. The English Premier League is famous for its hard game and relies on physicality, it is difficult for Pogba to develop the game because of the different stretches. Pogba must make wise decisions for his career, moving to Manchester City is not a solution, if to return to the Italian League or to PSG it can still be said to be a good decision for Pogba.