Could he also consider going to a club with a slightly lesser status such as Chelsea to still play CL?
I guess, the best thing for cristiano Ronaldo to do now, is to resign to receive a beautiful honor from the world, and to look for a coaching job to raise more potential players that will make the world to celebrate him than looking for a club to join after the disgrace Manchester united coach gave to him by eliminated his contract. I don't think, Chelsea coach will allow someone that is above 28 age in their team, because cristiano Ronaldo is almost 38 age now, which it will be difficult for any team to accept such player in their team.
I think 38 is not a negative for Cristiano. We watched Zlatan again with his good performance at this age. Ronaldo can show this performance in the same way. It just takes a team that believes in it. He was 37 years old last year and had done well for Manchester United. Cristiano Ronaldo probably plans to play football until the age of 40. Later, he can step into his coaching career.