Many clubs have deny their interest in Ronaldo such as Bayern, Napoli. I think Ronaldo is not going to Arsenal. Arteta is trying to build something beautiful and you can see he's building his team around young players, so Arsenal is a no go area. Chelsea? Anything is possible, the team is really struggling and their strikers have not been up to par and we know Ronaldo's desire to play for an elite competition like the champions league. So, the probability of him playing for Chelsea is 50%. I don't think he's ready to make a big money move to Saudi Arabia. I think he still have some unfinished business in the champions league
Cristiano Ronaldo is nearing the end of his football career, so I don't think any of the teams you mentioned could sign him either. Even though we know Chelsea was interested in him previously, I don't think they will do so now; they would rather go for young strikers with years to play than Ronaldo, whose age is no longer on his side in terms of football.
Ronaldo should think about joining a Saudi Arabian team because I know they love him and will give him enough playing time to make history with them.
Age have nothing to do with Ronaldo , he is still very active . The reason why maybe much clubs are not interested in buying him is because of the high amount of money to sign in him. This season Ronaldo have not played football in a full match compare to last season that is why he has not done much.