I think finding a new club shouldn't be a problem, which club in the world wouldn't want to have a player like Ronaldo in their team, Ronaldo was in top form before he came to Manchester United, Ten Hag and the United squad made Ronaldo look bad. I believe he will do well in a better team, the only hindering factor should be his wage and I believe that will be why many clubs are staying away from the deal. This is a good time to take that big money deal to the Arab league, what else is there to play for, he already has every thing he want, trophies and even legacy so he should just play for the money now.
Well, let's assume what you say is true, regarding Ronaldo's performance before coming to Old Trafford. however, we must remember that the age factor cannot be denied by any great player. 37 is not a young age, although he still has excellent stamina and a strong physique, it is clear that his sharpness is decreasing as he gets older. the few times he missed a chance to score in the game versus Omonia, what we expected, didn't make it anything special in that game.
I'm not sure it's just a matter of salary, there are a lot of things that big clubs take into consideration, one of which is the age factor, the productivity has decreased a lot due to age.
I think this is the reason why many big clubs are not interested in signing Ronaldo.