It doesn't feel like Ronaldo will be able to find a team for himself which is already in the Champions League now. Because there is no such team having serious interest in signing him these days. There is still time for even the start of the transfer window of course but I'm not very hopeful about that. The only team I've heard of in Europe is Newcastle for now. If Ronaldo is ready to be patient he should sign a deal with them. They are already doing great in the EPL and they have a potential for the CL.

Otherwise Ronaldo seems really likely to go outside Europe, especially that Saudi Arabia team Al-Nassr.