Acquiring residency in China

My wife and I moved out of the US and now live in Latin America. Our long-term goal is China, and some other areas of SE Asia if that path is proven to be unfeasible. While I realize and am clear that emigrating to China is not simple (is it ever in any place?) and for some, potentially impossible, we're confident in our capabilities to make something work.

The information I've found online is scant, contradictory, or largely unreliable. The official Chinese immigration website is elucidating to an extent, but as I've personally experienced, many states are not entirely comprehensive and oftentimes there are other paths that are not explicitly articulated on official sources. But, assuming this is the case, the primary method for me personally would be by studying in China, while my wife has a Master's and could potentially be considered high-talent.

I would like to study and learn Mandarin, if that would enable me and my wife to stay at-length. Would anyone here have experience, first or at most second-hand, of Universities that would be worth looking into? And any general advice for those who have successfully emigrated to China in general would be profoundly helpful.