The most neutral place for Ronaldo is to move to the Bundesliga and join Munich. So far the rumors circulating are more likely to Chelsea and Munich. If he go to Chelsea, maybe Ronaldo will be considered as a traitor by MU fans. However, if he go to Bundesliga, Ronaldo has the opportunity to win an additional 1 trophy in a different league. Munich is already dominating the Bundesliga, if Ronaldo joins I believe it will be even more difficult for other teams to challenge Munich.
Manchester United are outraged that Ronaldo has not yet come to the training camp to prepare for the new season, as well as the fact that he did not tell the management about his desire to leave the club back in May, and this became known only now. I remember how recently he said that he was not negotiating with any club, but now it turns out something completely different. Perhaps he really waited and saw how serious Manchester United were in their intentions to buy new players, but now he is unhappy with the situation and wants to leave.
It has only been revealed now that Ronaldo apparently had a desire to leave Manchester United and now the situation is even more complicated for the Man United club because they don't want him to leave.
Ronaldo's agent, Jorge Mendes has met with several clubs to discuss this I think it is serious for Ronaldo's situation now because he was not satisfied with being in the Man United squad last season so when the transfer window became a very interesting rumor about Ronaldo's departure.
In a few minutes ago I read the local news that the President of Barcelona "Laporta" had dinner with Jorge Mendes but in the discussion did not provide a detailed response to Ronaldo's transfer, but I am sure that in this meeting there was at least a bit of discussing Ronaldo's rumors.